Games like 2112TD: Tower Defense Survival
Games like 2112TD: Tower Defense Survival include Aliens: Dark Descent, Plants vs. Zombies GOTY Edition, Infested Planet, FTL: Faster Than Light, and Kingdom Rush - Tower Defense. We matched them by the tags players give 2112TD: Tower Defense Survival on Steam (Tower Defense, Strategy, Singleplayer, Sci-fi, and Survival): closest matches first, and among equally close ones the better-known games.

Aliens: Dark Descent
Shared: Strategy · Action · Tactical

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Singleplayer

Infested Planet
Shared: Tower Defense · Strategy · Singleplayer

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Singleplayer

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · Singleplayer

GemCraft - Chasing Shadows
Shared: Tower Defense · Strategy · Singleplayer

XCOM 2
Shared: Strategy · Singleplayer · Tactical

Dungeon Defenders
Shared: Tower Defense · Singleplayer · Strategy

Bloons TD 6
Shared: Tower Defense · Strategy · Singleplayer

DG2: Defense Grid 2
Shared: Tower Defense · Strategy · Sci-fi

Sanctum 2
Shared: Tower Defense · Strategy · Sci-fi

X-Morph: Defense
Shared: Tower Defense · Strategy · Sci-fi

Defense Grid: The Awakening
Shared: Tower Defense · Strategy · Singleplayer

Dome Keeper
Shared: Singleplayer · Sci-fi · Tower Defense

Creeper World 3: Arc Eternal
Shared: Tower Defense · Strategy · Singleplayer

Door Kickers
Shared: Strategy · Tactical · Singleplayer

Cosmoteer: Starship Architect & Commander
Shared: Singleplayer · Sci-fi · Strategy

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Sci-fi · Singleplayer

Kingdom Rush Origins - Tower Defense
Shared: Tower Defense · Strategy · Singleplayer

They Are Billions
Shared: Strategy · Tower Defense · Survival

RimWorld
Shared: Strategy · Survival · Singleplayer

XCOM: Enemy Unknown
Shared: Strategy · Sci-fi · Tactical

Taur
Shared: Tower Defense · Strategy · Action

Heat Signature
Shared: Strategy · Action · Sci-fi