Who is Mr. Sweeney?
Tim Sweeney was born in 1970. Computers entered his life early – he had his own Apple II at age 11, and at the same age, he visited his older brother Steve's startup in California, where he gained access to early IBM PCs. According to Sweeney himself, from ages 11 to 15, he spent over 10,000 hours self-teaching programming, using documentation he downloaded via BBS – a modem-based equivalent of modern forums and social networks, popular in the 1980s.
He started, like many at the time, with BASIC, but gradually progressed to assembly language – in Russia, many young programmers followed a similar path in the late 1980s and early 1990s when ZX-Spectrum became widespread. For those unfamiliar with low-level programming, let's explain: to write in assembly, it's not enough to know the processor's instruction set – you need to understand the hardware and its intricacies very well. This detail would not deserve such a detailed description if it weren't one of the keys to understanding Sweeney as a person. He is deeply immersed in technology, especially in his early formative years.
Later, while studying engineering at the University of Maryland, Sweeney reworks the editor he was creating for the Pascal language into the game ZZT and distributes it under a shareware license. The game starts generating income, and at this point, Tim realizes he can make a living developing games. Thus, in 1991, Potomac Computer Systems was founded, later renamed Epic MegaGames, and in the early 2000s – simply Epic Games.
The key feature of ZZT is that it's not just a game. It's a game with a built-in editor that allowed any user to create their own levels and modifications. Moreover, the editor was included in the shareware version – anyone could use it, regardless of whether they paid for the full version. Sweeney later recalled:
“ZZT taught me one of the most important lessons in life: people really want the freedom to create things. If you give users a tool to extend a game, they'll make a bunch of cool stuff you couldn't even imagine.”
This principle – to give people tools and the freedom to create – would become the foundation of Sweeney's entire career. ZZT was not just a commercial success, but a prototype of what would later become Unreal Engine. Sweeney himself wrote about it:
“ZZT was a kind of prototype for Unreal Engine 0 — an engine with a built-in game editor.”
Tim Sweeney vs. John Carmack
Throughout the 1990s, Tim Sweeney and his company Epic Megagames went from being essentially a startup to achieving their first major success. Games in the 1990s were created by small teams, and their development, unlike modern projects, was relatively inexpensive. Sales of good games, even in small quantities (compared to today's circulation), allowed the company to stay afloat.
Epic Games operated on a shareware model. Players could try a portion of the game for free, and if they liked it, they could buy the full version. The list of popular Epic Megagames titles from that era might not mean much to modern players, but old-timers might recall one or two: Epic Pinball, Brix, Jill of the Jungle, Jazz Jackrabbit, and One Must Fall 2097.
But the first game that would elevate Tim Sweeney to Olympus and place him alongside the legend of that era, John Carmack (one of the creators of DOOM and a key developer of the id Software engine), would be released in 1998. This was Unreal. And when reviewers from all over the world wrote their reviews of this shooter, they would all, without exception, praise the “unreal” quality of the 3D graphics that Unreal produced.
To understand the context. By the late 1990s, for the increasingly popular shooter genre, id Software's products were considered the best engines. And the engine created by John Carmack was the pinnacle of technology at the time. It was his engines that dictated the requirements for NVidia and ATI (not the other way around), and it was his engines that were licensed by major publishers and developers to create their projects. In particular, the id engine formed the basis of GoldSrc – a modified Quake engine on which Half-Life by Valve was released in the same year, 1998.
That is, by the time Unreal was created, the id Software engine (Quake engine) was practically the industry standard. But Sweeney saw serious flaws in it.
The main problem was the separation of the engine and the editor. In id Software, the engine and the level editor were completely separate programs. The editor was primitive, inconvenient, and Carmack didn't pay much attention to it – he was interested in technology.
Sweeney later recalled:
“I thought very deeply about this beforehand — looking at what Quake and Doom did: they had this little crappy editor with a very advanced game engine behind it. Completely separate programs. I came to the conclusion that content development was really the most important element in all of this. It was important to spend even more effort on the editor and tools than on the game itself, just to enable artists to make a great game.”
The second difference was architecture. Unreal Engine was written in C++ from scratch, while id's code was in C and assembly. Tim Sweeney himself, as we remember, can write code in assembly. Thanks to this, truly excellent optimization can be achieved. However, by the end of the 1990s, there weren't many such skilled people left. Most programmers preferred to use high-level programming languages. This ensured code readability.
If you've never seriously written programs, let us explain that code is more often read than written. And the cleaner and more understandable the code is written, the easier it is to modify and maintain. Assembly code does not meet this requirement at all. This was especially important for an engine that Sweeney planned to license to other developers – they needed to understand and modify the code, not decipher tricky optimization in machine instructions.
Sweeney recalled receiving 30,000 lines of assembly code for an early version of Unreal from co-developer James Schmalz:
“He sent me 30,000 lines of assembly code. [laughs] The 3D engine contained elements from Epic Pinball and other previous assembly code that he copied and pasted, and I thought, "Oh my god, what is this thing? I don't want to touch it!" [laughs].”
In the end, Sweeney rewrote the engine in C++. This decision defined the philosophy of Unreal Engine as a product for other developers. Did this make Unreal Engine immediately popular? No. It took years of hard work. But not only that. Sweeney made the game engine a product.
If for id and John Carmack, engine licensing was more of a side business, Sweeney, from the very beginning, positioned Unreal Engine as a product for other developers.
“We were really serious about [licensing] at that point because it was making money, and it made us look at engine licensing completely differently than id. The joke — at the time — was that id's licensing was like XCopy for a quarter million dollars: you pay a quarter million dollars, and they use the DOS XCopy command to give you a copy of the source code... and that's it. [laughs].”
The engine and editor were integrated – UnrealEd worked in the same environment as the game itself. Epic actively supported licensees, helped with documentation and training, and the price of licenses was lower than id's. But it still took years of developing tools and demonstrating capabilities in their own projects (Unreal Tournament) to bring Unreal Engine to the top, which it achieved with the release of UE3.
And ultimately, today Unreal Engine is used in thousands of projects worldwide, from indie games to Hollywood films and architectural visualization, while id Tech has gradually faded into the background.
Malicious tongues, however, claim that the consequence of Unreal Engine's high accessibility is its average performance. Especially compared to id's almost perfectly polished engines for specific tasks, which always prioritized rendering speed over versatility. And to make Unreal Engine – no matter which version – deliver decent performance, you have to work just as hard, if not harder, than with more specialized solutions.
These same malicious tongues, however, claim that the dominance of a single engine negatively affects the visual diversity of the industry. The brown-gray palette of UE3 became a byword – a whole generation of shooters looked as if they had been passed through the same filter. And the templated approaches to creating worlds and characters offered by modern built-in Unreal tools have already turned dozens of games into twins.
Tim Sweeney vs. Gabe Newell
Now, PC gamers probably don't need an explanation of what Steam is and its significance for the gaming industry. But it wasn't always like this. Moreover, Gabe Newell and his Valve team struggled for a long time, unsuccessfully knocking on the doors of major software giants and publishers, trying to promote the idea of a service, and everywhere they received polite rejections.
And when Valve itself took action, Steam was met with misunderstanding and irritation by players. Tying the service to the internet at a time when many, even in the US, didn't have unlimited high-speed internet (not to mention the rest of the world), made game updates a painful process. In 2003, when Steam launched, only 20% of American households had broadband internet. Many users had dial-up connections at 56 kilobits per second, and downloading updates via Steam could take hours.
But Steam solved a fundamental problem of PC gaming – piracy. The service's contribution to the development of the gaming industry on PC, in the fight against piracy on PC, cannot be overstated. Steam made buying games easier than pirating them, and that changed the industry.
But there's a downside to this. Steam has de facto monopolized the PC gaming market. This doesn't mean it all happened by itself. Microsoft tried to create its own Xbox-style gaming ecosystem on PC, and Valve had to fight for the openness of this system (hence SteamOS and Steam Machine). Major publishers left Steam to sell games on their own services (EA Origin, Ubisoft Connect). But players were for Steam, and publishers returned.
The flip side of the service is Steam's commissions. Gabe and company charge partners 30% for each transaction. Some might say this is a standard commission in the gaming industry, and stores selling physical discs have similar margins. The same commission applies to consoles. However, stores need to pay for physical warehouses and delivery, light up display cases, and pay salespeople. Maintaining digital infrastructure is cheaper. So why does the commission remain high?
Consoles at the start of generations are often sold at a loss to ensure the widest possible market penetration. But Valve does not sell PCs at a loss. And it would be foolish to expect this in the case of Steam Machine. PC is an open architecture.
But still, are these 30% fair? On the one hand, Valve is not alone. On the other hand, one can't help but envy Gabe Newell's superyachts. It's doubtful that Tim Sweeney envies Gabe's yachts, but the fact that he considers the 30% commission exorbitant is a fact. And he said this long before the launch of the Epic Games Store.
In August 2017, Sweeney wrote about this personally to Gabe Newell. The correspondence was revealed during an antitrust lawsuit against Valve in 2022. Sweeney directly explained to Newell why the 30% commission was unfair:
“In the early days, there were reasons for such commissions, but now the scale is high, and operating costs are reduced. At the same time, the flow of new releases is so fast that the brief marketing value of a storefront is disproportionate to the commission.”
Sweeney calculated that if the top 25 best-selling Steam games were removed, “Valve made more profit on most of the next 1,000 games than the developers themselves.” He provided the math: 30% goes to Valve, 30% to marketing, 15% to servers and engine – “the system takes 75%, and 25% remains for the actual game creation. Worse than the economics of 1990s retail distribution.”
When the Epic Games Store launched in December 2018 with a 12% commission and no player reviews, it was primarily an ideological attack. Sweeney believed that developers would simply switch from Steam to EGS, and players would be forced to follow, or Steam would be forced to lower its commission. That is, the industry as a whole and developers in particular would benefit.
By this point, Sweeney's patience was already at its limit. In December 2018, literally before the EGS launch, he wrote a new letter to Gabe Newell and Valve COO Scott Lynch. This time, the tone was completely different. Sweeney directly called Valve employees “you assholes” and demanded a response to Apple's actions, against which Epic was preparing an antitrust lawsuit. He wanted Valve to publicly support Epic's position on the unfairness of the 30% commission. He found no support.
At the end of 2018, almost simultaneously with the launch of EGS, Valve announced a new Steam commission system: 25% for games with sales over $10 million and 20% for games with sales over $50 million. Formally, Valve reduced commissions. Although the basic rate of 30% remained for most developers.
The Epic Games Store received a lot of critical feedback at launch. For weak functionality, for the lack of a wishlist, user reviews, cloud saves, and a proper client. For buying up exclusives, which eventually faded away. For aggressive marketing – announcing exclusives a day before release, when players had already pre-ordered on Steam. For collecting telemetry without clear explanation.
But if you were a developer, honestly, all things being equal, would you give up 30% commission or 12%?
However, the conditions were not equal. And it cannot be said that Valve fought with white gloves. Steam contracts stipulated special conditions that prohibited developers from offering their games cheaper on other platforms. If a developer sold a game cheaper in another store, Steam could demand a price reduction or remove the game from the store. This made it virtually impossible for a real price competitor to emerge.
Both Gabe Newell and Tim Sweeney, it seems, are hypocritical when they appeal to players. For both, it's a resource. The question is how it's used. And here, players sided with Valve and Steam. And although EGS is still operating, the outcome of this confrontation was not in Tim Sweeney's favor.
Malicious tongues, however, claim that by launching the frankly unfinished EGS and aggressively buying up exclusives, Tim Sweeney primarily disregarded the opinions of players – the very ones he intended to profit from. So it's not surprising that players responded to EGS with mutual dislike.
And in general, this whole fuss was not started for the sake of fairness for developers or to fight Steam's monopoly. Even that wasn't the main goal – after all, Steam partially reduced commissions. The real goal was Apple's and Google's mobile ecosystems, where huge money circulates. EGS was just part of the strategy, a diversionary maneuver before the main strike.
Tim Sweeney vs. Tim Cook
Fortnite is Epic Games' cash cow. Yes, much was borrowed from other games, but as “creative reinterpretation” and “inspiration.” However, that's not the point. Fortnite found success after an initial failure.
This game is one of the few major games from Western developers that has achieved resounding success in the mobile market. The mobile version of Fortnite generated over $1 billion in revenue in its first two years. Meanwhile, the mobile market was dominated by Asian developers – Tencent with PUBG Mobile, miHoYo with Genshin Impact.
And although Fortnite brought in billions of US dollars, Tim Sweeney felt injustice. The owners of mobile ecosystems – Apple and Google – were profiting from him. Both companies took a 30% commission on all in-app purchases. This meant that for every dollar players spent on V-Bucks (Fortnite's in-game currency), Epic only received 70 cents.
In July 2020, Tim Sweeney publicly stated: “Apple has locked down and crippled the App Store” and called the App Store “an absolute monopoly.” And in November 2021, he stated that Apple and Google conduct business like gangsters.
What happened on August 13, 2020, was not a spontaneous decision. It was a carefully planned operation codenamed “Project Liberty.” Epic Games had been preparing this move for months.
On that day, Epic released a Fortnite update that added an alternative payment system. Players could buy V-Bucks directly from Epic with a 20% discount, thereby bypassing Apple's and Google's 30% commission.
This was a direct violation of the App Store and Google Play terms. Both companies reacted instantly. On the same day, August 13, 2020, Apple removed Fortnite from the App Store. The game soon disappeared from Google Play as well.
Epic was ready for this. On the same day, the company filed antitrust lawsuits against Apple and Google. Moreover, Epic had prepared an advertisement in advance, parodying Apple's famous 1984 commercial, and published it on social media immediately after the ban.
The lawsuit against Apple began in May 2021 and lasted three weeks. On September 10, 2021, the judge issued a ruling on a 185-page document. Apple won on 9 out of 10 counts. The judge ruled that Apple was not a monopolist in the sense of antitrust law.
Epic lost on the main antitrust claim. But Apple lost on one important point – the so-called “anti-steering provisions.” The judge ruled that Apple could not prohibit developers from directing users to external payment systems via in-app links.
This was a Pyrrhic victory for Epic. Fortnite remained blocked in the App Store. However, Apple did not give up, appealed the decision, and the legal proceedings continued.
In January 2024, the US Supreme Court refused to hear appeals from both sides, leaving the decision in place. But by then, Fortnite had been absent from the App Store for over three years.
The trial against Google took place in December 2023. Unlike the trial with Apple, where the decision was made by a judge, here there was a jury. The result was unambiguous: on December 11, 2023, the jury found Google guilty of illegal monopoly.
Sweeney called it: “A victory for all developers and consumers worldwide.” However, Google appealed the decision and the legal proceedings continued.
The outcome of this confrontation is more of a moral victory. Courts recognized some of Apple's and Google's practices as illegal. In Europe, thanks to the DMA (Digital Markets Act), Fortnite returned to iOS in 2024 via the Epic Games Store, and the industry as a whole began to think more about the fairness of commissions. But Epic lost billions of dollars in revenue from the mobile version of Fortnite and spent millions of dollars on litigation. And they continue to this day.
One cannot but admit that at least some of Tim Sweeney's claims against mobile platform owners are fair. This is especially evident now in Russia, looking at the attitude Google and Apple demonstrate towards users of their devices.
Malicious tongues, however, claim that although Tim Sweeney's claims against Google and Apple are largely fair – a classic duopoly has indeed formed in the mobile market – the very form in which the showdown between Epic Games and the two corporate giants took place did more harm than good. Public airing of dirty laundry, personal attacks, ultimatum demands for Gabe Newell to rally under his banner (remember the “assholes” in the correspondence) – all this rather alienated potential allies than united them.
And ultimately, Sweeney found himself alone against Apple and Google, who eventually simply devoured Fortnite – the game has been absent from the App Store for six years now. Yes, by this time, Chinese Tencent had already acquired a 40% stake in Epic Games, but the forces were still clearly unequal. Trying to win a war against such giants in the media space, instead of focusing on winning in court and attracting other industry players to his side, is a bad strategy. So Sweeney, trying to negotiate better terms for himself, essentially shot himself in the foot.
Tim Sweeney vs. Public Opinion
Public opinion is against generative AI. And not without reason. Low-quality content – the so-called “AI slop” – has flooded social networks, Steam, and mobile stores. Many players perceive AI as a threat to game quality and developer jobs.
Not everyone is willing to pay big money for games – and the price is now slowly approaching the $100 mark per copy – and get AI slop for that money.
But there's another side to this coin. The cost of developing and supporting games is now astronomical. For live-service games and platform games, the cost of support is usually several times higher than the cost of developing the initial version. Roughly speaking – $100 million for game development and $200 million for annual content. But if the game is successful, the profits are huge.
The question is, should game development cost so much? Where do such prices come from? And why is the efficiency so low? Chinese, Russian (Eastern European in general), and Korean studios demonstrate good efficiency and return on every dollar invested. But European and US studios cannot boast the same.
But Tim Sweeney knows how to increase efficiency. AI.
In June 2026, when Bungie announced the cessation of active support for Destiny 2, Sweeney did not miss the opportunity to comment on the situation. In a post on X, he wrote:
“If only some fancy new technology would come along and allow... Games like Destiny to thrive!”
This was obvious sarcasm – the “fancy new technology” clearly referred to AI. Sweeney is convinced that Destiny 2 could have been more profitable if Bungie had used AI to generate a huge amount of game content with a much smaller budget.
Ironically, Epic Games' efficiency currently has to be boosted by layoffs.
The company laid off about 1,000 Epic Games employees, while praising AI for making jobs more efficient. However, the company's press release regarding the layoffs specifically emphasized that they were not related to the implementation of AI.
When Valve introduced mandatory labeling for games using AI on Steam, Sweeney exploded. In an interview, he called Valve's policy irresponsible:
“I think it's really irresponsible of Valve. They shouldn't be doing that because it significantly, significantly, significantly hinders a game developer's chances of success.”
Sweeney called the labeling “the Scarlet Letter of AI” – a reference to Nathaniel Hawthorne's novel, where the heroine was forced to wear the letter “A” as a mark of shame for adultery.
He explained:
“If you want to launch a game and get the widest possible exposure, you have to release it on Steam. If you want to play it on Steam, then you have to get this Scarlet Letter of AI attached to your product, and now there's a community of haters trying to kill the game.”
But perhaps it's not just about concerns for the fate of developers. Epic Games is actively integrating AI tools into Unreal Engine:
- Epic Developer Assistant – an AI assistant for developers.
- Accelerating 3D art creation with AI.
- Integration with large language models for dialogues that go beyond fixed recordings.
Tim Sweeney is confident that in the next few years, with the help of AI, a team of 10 people will be able to create a game like The Legend of Zelda: Breath of the Wild, where developers simply write character synopses.
This doesn't mean everything will be fine immediately. Tim Sweeney is indeed a good specialist and knows the value of good code. And he knows that good games will still sell amidst thousands of bad ones. There will be AI slop, but in capable hands, it will be a powerful tool:
“The game industry has always been driven forward by great games created by talented teams. Every generation has had its low-quality projects: first, they were just bad games, then asset flips, and now there will be AI slop. But for professional developers, these tools will only accelerate development.”
The outcome of this confrontation remains to be seen. But perhaps for the first time since he started working in the game industry, Tim Sweeney is close to enabling everyone to create games – to fulfill his childhood and teenage dreams.
Perhaps we are close to a point where AI will allow small studios to compete with giants, reduce development costs, and accelerate content creation. And large game development studios will finally be able to balance their books and reduce expenses. And ultimately, everyone will benefit from this. Both gamers and game creators.
Malicious tongues, however, claim that the active implementation of AI assistants in UE is an attempt to jump on the artificial intelligence hype train. The mere mention of Epic Games in conjunction with AI is already capable of raising investor interest in the company. Because it positions itself at the forefront of technological progress. And this AI is not needed at all to ease the work of developers in the way Tim Sweeney imagines it.
It's simply an attempt to ride another hype train – the metaverse – which is currently turning out to be a bust. The Fortnite metaverse needs content. And so, armed with AI, vibe-game designers will generously dump this “content” into Tim Sweeney's metaverse. And the quality of this “content” is, in principle, irrelevant to Tim Sweeney. After all, AI slop gets huge views on social media. So here too, “the people will eat it up.”
The Outcome for the Controversial Developer
Tim Sweeney is a controversial figure. The perseverance that allowed him to create Unreal Engine and challenge Apple turns into stubbornness when he continues the fight, even when the business suffers. The vision that gave the industry Fortnite and the metaverse turns into a dispersion of resources when Epic lays off 1,000 employees while praising AI.
He defeated Carmack – Unreal Engine became the industry standard, and id Tech faded into the background. But he lost to Newell – Steam remained the dominant platform, and EGS never became a full-fledged alternative. He won against Apple and Google – courts recognized some practices as illegal, but he lost billions on the mobile version of Fortnite. He champions AI, but public opinion is against it, and the outcome of the confrontation is still unclear.
In each of Sweeney's “wars,” he consistently takes the side of developers against platforms. He fights for lower commissions, for open ecosystems, for the democratization of tools. This is a consistent philosophy that runs through his entire career – from ZZT with its built-in editor to UE5 with AI tools.
It's doubtful that Tim Sweeney will ever become as popular among gamers as Gabe Newell, but his principled stance cannot be denied. And it must be honestly admitted – this is appealing. Yes, the ideas he promotes are not always liked by players. But he doesn't need them to be. For over 30 years, Tim Sweeney has been almost single-handedly fighting the system and platforms for the rights of developers. We can only wish him good luck in this difficult endeavor.
Malicious tongues, however, claim that Tim Sweeney's entire struggle for developers is a struggle for one developer named Epic Games, and Tim Sweeney himself is a predatory capitalist disguised as a libertarian. His philosophy of “open platforms” works exactly as long as these platforms belong to his competitors. If Apple had allowed Epic Games into its store on his terms, Sweeney would immediately forget about “developer freedom” and begin to stifle those who tried to compete with him within his own ecosystem. Are the malicious tongues right or not? Perhaps we will find out someday.