I'm looking for some free (and legal) games to pack onto a low powered windows 10 tablet with an attached keyboard. They don't need to be triple a titles, just free and fun and able to run.
Particularly, basic Street Fighter\Mortal combat games or FPS that can be played off line.
The tablet has an atom processor, Windows 10, and 2gb of RAM.
I'm bored with solitaire, but don't want to fork out any actual money.
Maybe you should check this out: http://apkplaygame.com/tag/Games-With-Controller-Support
It's list of Android games with keyword/controller support, you can download all this games from the website.
To play Android games on your Windows tablet you can use Android emulator like Bluestacks, it just works fine.
Hope that helps
I also can't offer you Win10 games for tablet but I would recommend you to play Asphalt 8, you can play it with emulator and it supports USB/bluetooth/MOGA controllers.
I know you don't have Android market, so here you can download Asphalt 8 apk and install it with bluestacks emulator.(apk is Android app/game installer file)
Don't worry, Asphalt 8 is 100% free, you can play offline or online in multiplayer with other players.
Graphics are superb