Terraria

Andrew "Redigit" Spinks and a small team released Terraria in 2011 as what looked like "2D Minecraft." It isn't. Terraria is a 2D sandbox action-adventure with 5,000+ items, 400+ enemies, 30+ bosses, and a progression system that goes from wooden swords to endgame cosmic gear. The game has been updated continuously for 13 years — for free. Over 58 million copies sold across all platforms, making it one of the best-selling games ever. Re-Logic has maintained it with a dedication that puts most AAA live-service games to shame.