Sanctum 2

How to Decide

Sanctum 2 is known for blending tower‑defense strategy with first‑person shooting in a sci‑fi co‑op adventure, and it’s used by players who enjoy strategy‑shooters and cooperative action. The alternatives split into a few clear camps: Sanctum leans on a lower one‑time price and four distinct maps with cross‑platform Windows/macOS support; Natural Selection 2 emphasizes asymmetric faction gameplay with a persistent evolution system and large‑scale 32‑player battles, plus built‑in map editor and mod tools.

When weighing substitutes for Sanctum 2, focus on (1) pricing model – Sanctum 2 and Sanctum cost $29.99 and $19.99 respectively, while Natural Selection 2 is $19.99; (2) multiplayer scope – Sanctum 2 and Sanctum cap at four‑player co‑op, whereas Natural Selection 2 supports up to 32 players in competitive matches; (3) gameplay depth and asymmetry – Sanctum 2 offers a hybrid tower‑defense/FPS loop, Sanctum mirrors that on a smaller map set, while Natural Selection 2 adds faction‑specific abilities and an evolution tree; (4) content breadth – Sanctum 2 provides a story‑driven campaign and multiple alien environments, Sanctum limits itself to four maps, and Natural Selection 2 extends replayability through community‑created maps and mods; (5) platform availability – Sanctum 2 runs on PC, Mac, Linux, PS3 and Xbox 360, Sanctum covers Windows/macOS, and Natural Selection 2 is PC‑only.