Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
I saw this game on Playstation Store for PSP... Many psp games are reaching steam and mobile... Like Final Fantasy Tactics: War of the Lions (android. ios?), Criminal Girls: Invited Only (Steam), Disgaea: Hour of Darkness (Steam), The Legend of Heroes: Trails in the Sky (Steam)... Some PSP games i would like to see on Steam: Z.H.P. Unlosing Ranger vs DarkDeath EvilMan, Ragnarok Tactics, Megaman: Maverick Hunter X, Class of Heroes 1, 2 and 3, Mana Khemia: Student Alliance.