Sometimes the best opponent is sitting right next to you. These games let two players play on the same phone, tablet or computer — with split-screen controls or by passing the device between turns. They are free and need no download or account.
Battle on one screen in the air hockey game Glide Puck or the floppy basketball game Wobble Dunk, or take turns in Cue Lagoon, Carrom Comet, Ludo Lantern and Disc Drop Duel.
See our full list of free 2-player games for one device.