Outracks: Makes some "program CPU and GPU in the same language" thing
Dys4ia: A game about one person's transgender experience
Kentucky Route Zero: An adventure game with a unique style
Lovers in a Dangerous Spacetime: is a 2−player co−op micro−platformer set inside a pink Death Star locked in battle with hordes of space baddies
Knights of Pen and Paper: Is meta RPG. You play a group of friends playing an RPG
Sandboxr: Print your own figurines
Giga Tokyo Toy Box: A manga about making video games.
140: A platformer synced to music
Intrusion 2: A Contra style 2D game with lots of cool segmented sprite animation
Liquid Sketch: A game using fluids. Not sure how it plays. There are lots of other fluid games but it looks interesting.
Zineth: A skating game. Mostly impressive as it was made an a few months by students