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.
Some developer is making a doom game on roblox o_o Its rral and it has a twitte rthat i forgot... But its just like doom 2016 it has glory kills etc. You should support them