Valheim went live on Steam exactly five weeks ago, and it's been on fire ever since. Iron Gate's Viking survival sim rocketed up the charts, hitting 5 million copies sold after just one month in Early Access and surpassing huge titles like Dota 2 in terms of concurrent active players. Steam reviews for Valheim exude a palpable sense of awe and relief. Players regularly compare the feeling to the first time they played Minecraft, marveling at the game's scope, depth and atmosphere, and questioning how a team of just five developers managed to pack such an engrossing experience into a 1GB download. Valheim sets players loose in an original realm of Viking purgatory, a vast, procedurally generated world filled with mythical Norse beasts, high seas, hunting and crafting.