https://store.steampowered.com/app/2012600/Radium_Lux/

http://store.steampowered.com/app/562460/Ra
Android: https://play.google.com/store/apps/details?id=com.develobster.ra2
iOS: https://itunes.apple.com/us/app/ra/id1242345957#

Hey Guys!
I started a special week for Ra² today.
You can grab the iOS and Android version for only 1$ (75%-80% OFF) or get the Steam edition with 50% OFF.

Would be great if you check it out.
I can promise this game is very polished and made with love, also I hired a professional musician for a original Soundtrack of 13 tracks :)

Greets,
Lukas (The Develobster)

http://store.steampowered.com/app/562460

http://store.steampowered.com/app/562460

Don't forget to add it to your wishlist. It will start with 20% off ;)
http://store.steampowered.com/app/562460/

Hey internet people. I'm working on a new Radium which is now available on Steam Greenlight and I need your help.
Ra includes a better level design, Steam-Leaderboard, portals, rotating levels and more!

http://steamcommunity.com/sharedfiles/filedetails/?id=779791910

Hey internet people. I'm working on a new Radium which is now available on Steam Greenlight and I need your help.
Ra² includes a better level design, Steam-Leaderboard, portals, rotating levels and more!

http://steamcommunity.com/sharedfiles/filedetails/?id=779791910

Link

I decided to release the full game for free for Android users, because I thought it's better when people play it for free, than just a few people buy the android edition. Have fun! ;)click here

It doesn't seem that someone noticed that Radium is also available on Google-Play for less than two bucks.