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You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
✓ Supported
✓ 2–4 Players (Co-op)
Unsupported
✓ Crossplay
Crowdsourced campaign length, extra objectives, and 100% completion metrics
Session-Based / Party Multiplayer
Designed for dynamic rounds, party matchmaking, and infinite multiplayer replayability. No fixed linear campaign duration.
Official high-resolution media gallery (4 screenshots)



Available game editions, collector bundles, Supporter Packs, and downloadable expansions
Official downloadable expansion or add-on content for Sanctum (Steam App ID #91618).
Official downloadable expansion or add-on content for Sanctum (Steam App ID #91612).
Official downloadable expansion or add-on content for Sanctum (Steam App ID #91609).
Official downloadable expansion or add-on content for Sanctum (Steam App ID #91604).
Official downloadable expansion or add-on content for Sanctum (Steam App ID #91616).
Live pricing across official digital stores, historical lows, and subscription catalog availability
Honest player critiques with verified playtime and karma upvoting
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Troubleshooting guides, build recommendations and accepted solutions
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Key directors, leads, and game development studios