ScummVM supports many many games. Some people might think it's an emulator, but it's actually a collection of reverse engineered game engines.
eDuke32 and other Build Engine source ports
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ScummVM supports many many games. Some people might think it's an emulator, but it's actually a collection of reverse engineered game engines.
eDuke32 and other Build Engine source ports
OpenRCT (not totally free but a damn impressive project nonetheless)
OpenRCT is free iirc! You can just get the RCT2 demo for the assets OpenRCT needs
Which of these are available on Android?
I have F-droid, and Ive installed Mindustry and Open Transport Tycoon Deluxe.
Mindustry is great for wasting time.
Battle For Wesnoth is on android, the controls are kinda wonky but it's not bad.
KeeperRL is a lighter Dwarf-Fortress like game where you play as a Monster making a Dungeon.
Barotrauma is source available (no commercial, public use, restricted for game modding and contributions) Librerama is dumbways to die style minigames
My favorite: cataclysm dda, flare rpg, oolite.
xevil
Sauerbraten
Taisei Project for Touhou and other 2D bullet-hell shooter fans (I recommend installing it instead of playing online).
zero-k is really good rts. Its similiar to supreme commander
ClassicUO is a nice open source client for Ultima Online. Need to have the game assets.