ID: 32707 No.2964
Currently, mostly DCSS.
Occasionally Nethack, ToME, Angband, 0AD, MegaGlest, OpenTTD, OpenRA, Wesnoth, Flare, Powder, DEFCON, Darwinia, Uplink, Wargame: Red Dragon, Freeciv, or UFO: AI.
And Shattered Pixel Dungeon, Go, Simon Tatham's Puzzles, or Chess on the phone.
I usually multitask when playing these games, like doing homework or watching videos. Most of them work well since they are mostly turn-based or pausable or not too demanding in thought.