Snapshot
Snapshot is an upcoming puzzle platformer with a pretty unique copy and paste concept: Take photographs of objects (Doors, platforms, keys, rolling stones etc.) to remove them from their environment and replace these objects anywhere to solve puzzles or destroy enemies.
Game is still in development (No Demo available)
Offspring Fling
Offspring Fling is a promising upcoming puzzle platformer where you throw little creatures around so they bounce around and activate buttons etc.
Game is still in development (No Demo available)
A.D.O.N. Project
A.D.O.N. Project is an upcoming action platformer that draws inspiration from Shinobi, Sonic and Mega Man.
Game is still in development (No Demo available)
Gunpoint
Gunpoint is a very promising stealth platformer about a spy (with super human jumping power) that breaks into buildings. According to the developer the game will probably be released in March this year.
Game is still in development (No Demo available)
Tiny & Big: Grandpa’s Leftovers
Tiny & Big: Grandpa’s Leftover is a physics based third person platformer with a sandbox attitude. Make use of your ray cutter to slice rocks like butter and then pull them around with your grappling hook.
The game will be released in early 2012 (according to the latest trailer) but you can already check out the demo which is available for Windows, Mac and Linux.
Game is still in development (Demo available)