Halo: Combat Evolved on iPhone, iPad and Mac. The Xbox edition with online matches of up to 128 players and the original campaign, plus Halo Custom Edition with its community servers. Bring your own game and build it on your Mac.
Warcraft II on iPad. Native iPad port of the open-source Stratagus engine with support for user-supplied Warcraft II data.
Age of Empires II: Definitive Edition, native on iPad. Your own Steam copy with touch, Apple Pencil and keyboard controls, Steam on the iPad, no streaming.
BearBirdPad brings Banjo-Kazooie to iPhone and iPad via BanjoRecomp — native Metal rendering, customizable touch controls, Files-based ROM import, controllers, persistent saves, and ROM-free reproducible builds.
Kid Pix, native on iPad. An unofficial Swift recreation for Apple Pencil and touch.