The short version
Three games, three new homes.
Three fan projects showed up on GitHub this week. One runs the original 2011 PC version of Skyrim as an Android app, one runs the Xbox version of Need for Speed: Most Wanted on Android, and one runs Killzone 3, a PS3 exclusive, as a Windows program.
None of them is an emulator. Each is a static recompilation, which means the game's own code is translated ahead of time into a program for the new device, instead of a second machine being imitated while you play.
None of the repositories carries any game files. Each one only works with your own copy of the game.
Where they live
All three are on GitHub, with the developers' own notes.
MostWanted-Android
By Rangga Casper. Most Wanted's Xbox version on Android.
RanggaCasper/MostWanted-AndroidSkyrim on Android
The original 2011 PC game as a phone app.
It's built from the original 2011 PC version of Skyrim, not the Special Edition.
It was tested on a phone with a Snapdragon chip and an Adreno 610 graphics unit, which sits in budget phones. It needs Vulkan 1.1, which most recent phones support.
The game's threads run across all of the phone's cores, the same way they do on a PC.
The app opens on a launcher with the PC launcher's own settings, from Low up to Ultra. Low is the default.
An on-screen controller is built in for phones without a gamepad.
Need for Speed Most Wanted on Android
The 2005 game, from the original Xbox.
It's the original Xbox version of Most Wanted, the Black Edition.
On a Xiaomi Pad 7, races run at about 60 frames a second.
The Xbox drew it at 640 by 480. The port can render at up to twice your screen's height.
The touch controls are a full Xbox controller, and you can drag every button wherever you want. Real controllers and keyboards work too.
A story cutscene after the first race has been seen to stop on its first picture.
Killzone 3 on PC
A PS3 exclusive as a Windows program.
The game's PowerPC and Cell SPU code, the PS3's processor, is translated ahead of time and compiled into a regular Windows program.
All nine chapters load and play for minutes, and the game's own two-player split-screen co-op works on one PC with two controllers.
Xbox controllers work right away, and PlayStation controllers work through Steam Input.
It plays at about 16 to 22 frames a second today, and the goal is 30. The project calls itself partly playable.
