In early May 2026, Team Fortress 2 fans received a wealth of material to study. Artist Moby Francke, who worked on the team-based shooter, published concepts and animation examples on social media.
Moby said that they had previously worked on “Invasion” — this game became the predecessor to the Team Fortress 2 that Valve eventually released. It was supposed to be a project in a steampunk setting, where players could take on the role of aliens and mercenaries:
Before the Team Fortress 2 you know today, there was its predecessor called Invasion. Here are some fun animations created by my friend Miles Estes.
(you can watch the animation video at the following link).
Moby Francke also published several old character concepts:
Early concept and character sheet for Commando for Team Fortress Invasion. I cannot overstate the importance of this document for creating a cohesive visual lineup of all characters.
Medic and his version from Team Fortress 2:
Engineer — his image is significantly different from the final version of TF 2:
Other concepts can be found on the @mobyboyfrancke (Moby Francke) account.