Terraria is an action-adventure/RPG indie game released by independent game studio Re-Logic. The game features exploration, crafting, construction, and combat with a variety of creatures in a randomly generated 2-D world. Released on May 16, 2011, the game is estimated to have sold about 50,000 copies during its first day of release, with over 17,000 players online at the same time during the first day's peak. Over the week, 200,000 copies of the game were sold, making it the top-selling game on Steam for the week, ahead of The Witcher 2 and Portal 2. It remained number one on Steam for the first six days of its release.
Contributions by Hellknowz, ClueBot NG, and PR0T05T33L.