Sanctum

Lacks story and soundtrack

Dead multiplayer

High difficulty

Low enemy variety

Infrequent checkpoints

Hybrid FPS and Tower Defense gameplay

Variety of towers and weapons

Unique enemy types and behaviors

Maze building and level design

Cooperative multiplayer mode

Graphics feedback mixed

Framerate issues and improvements

Minor bugs and crashes

Bright colors may be harsh

Uses Unreal Engine 3

Worth playing despite similarities to Sanctum 2

Must-play for strategy and FPS fans

Simple, challenging, and fun

Unique and standout shooter series

Worth buying on sale