Games Like Core Keeper (PC) Steam Key (2026)

Shared: Base Building

Surviving alone was already brutal - surviving with friends who make catastrophic decisions is another beast entirely. A deep, unforgiving co-op survival game that rewards patience, preparation, and someone on the team who knows what a Science Machine actually does.

Shared: Procedural World

Fourteen years old and still pulling all-nighters - if a 2D sandbox has ever consumed your sleep schedule, Terraria is probably the reason why.

Shared: Base Building

Crash a plane, lose your son, then spend 30+ hours building spike traps and slowly losing your mind to cannibals. Solo or with up to 8 friends online, this one earns its Metacritic 83.

Shared: Boss Progression

Seven alien races, procedurally generated galaxies, and a sandbox that respects your attention span, Starbound is the space explorer's Terraria, for better and occasionally worse.

Shared: Base Building

Seven years of patches have turned a janky early-access survivor into one of the deepest base-building sandboxes on PC, and the Unreal Engine 5 overhaul means you're no longer buying into a museum piece.