Here is Boxoku!, it's donationware. So feel free to have a go and let me know what you think.
Its available for Windows 32bit/64bit, Linux 32bit/64bit and Mac OS X 64 bit (not code signed or notarized, let me know if you'd like that. Just basic executables, no installers.
Boxoku! was inspired by Nintendo's Cubello a WiiWare game from 2008 that really stuck in my head.
You match colors to clear the stage, it's that simple. The idea is there is as little barrier to entry as possible, the game resumes where you left it, it works in a window or full screen, its highly optimised, so runs at over 1000fps so can match and monitor you throw at it.
It has superficial controller support at the moment.
Here is a trailer I put together....