Team Fortress 2 is not really a “mod” game. The closest thing to a mod I’ve heard of is “the Hidden” mod which is based on the Hidden Source mod for Half Life 2. You could try to find a server with that enabled.
- Advanced Weaponizer 2
- TF2Ware
- Versus Saxton Hale
- Prop Hunt
- Deathmatch
- Randomizer
- x10 Mod
