Fan Game Oldest Fan Game you are aware of?

[TamagotchiTamaHero24's icon TamagotchiTamaHero24 TamagotchiTamaHero24]

Definitely this, early computing was rife with fan games. Star Trek from 1971 may be the very first one, off the top of my head.

Star Trek (1971 video game) - Wikipedia

en.wikipedia.org

WOW! That’s actually awesome!

 

[ciro64]

Mario and Luigi for DOS

 

[Segadude113]

ULtimate Flash Sonic

 

[χKai]

Used to see a lot of flash and java games on game/video hosting sites like Newgrounds, but I had already discovered Zelda, Mario, and Megaman ROMhacks before that.

 

[diet_orange]

Probably these two. Had them on a CD that loaded with shareware