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Watch trailer on Steam ↗Cthulhu tower
Marginal act · Published by Marginal act
Negative — 18% positive (11 reviews) · 6 achievements
Last updated 27 Sept 2026
Cthulhu Tower is a dark twist on classical tower defense genre where you try to protect your eldrich world from cruel crowds of humans!
£6.69
Lowest price we've ever recorded
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Price history
Action, Adventure · 2024 · More £5 - £15 games
Embark on a unique journey in Cthulhu Tower, where you defend an otherworldly realm against relentless human waves. Navigate the challenges of this dark twist on classic tower defense with Marginal act's innovative blend of action and adventure.
About this game
- Eldritch Forces: Control Lovecraftian monstrosities with unique abilities.
- Sanity Challenge: Protect your sanity amidst the human onslaught.
- Crafting and Building: Utilize a robust crafting system to create tools, weapons, and structures to improve your chances of survival.
- Dynamic Day-Night Cycle: Adapt to the changing environment as day turns into night, presenting new threats and opportunities.
- Resource Management: Gather resources from the environment, including flora, fauna, and minerals, to sustain your needs and craft essential items.
- Grim Aesthetics: Haunting visuals and eerie soundtrack.
- Endless Mode: Test your endurance against relentless waves.
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 8,10,11
- Processor: 2 GHz
- Memory: 2000 MB RAM
- Graphics: GeForce GT 610 / Intel (R) HD Graphics 5300
Supported Languages
Latest news
Patch NotesOfficial
Fixes and updates
Fixes Tutorial fix Big bullet comes through enemies fix Some of the buttons in the UI have been resized Updates Enemies debuffed by 50% Water animation changed Minor visual changes General performance updateRead full article on Community Announcements (MA)






