Game overview
Project Hastur
Defend humanity against the ever changing threat of the alien Proteans. Project Hastur combines elements of 3D tower defense and real-time strategy with models of biological evolution to create a uniquely challenging experience.
- Last tracked players
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- All-time peak
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- 24-hour change
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- Steam reviews
- 88.2% positive 17 reviews · via SteamSpy
Delayed observation · last tracked . Values marked unavailable are not estimated.
About this game Read the full description
PROJECT HASTUR creates a unique challenge by combining elements of 3D tower defense and real-time strategy with biological evolution. Fight against alien Proteans that evolve - using biologically accurate models of evolution - to overcome the player’s defenses.
Each creature you will face has its own unique genome controlling its abilities, behaviors, and appearance. Those that make it the furthest and do the most damage to your defenses have the most offspring you will have to defeat in the next generation. The result? Evolution responds to the player’s strategy and makes every playthrough a unique experience.
Use four upgradable turret classes, plus airstrikes and combat robots, to fight against the Protean invasion. Make strategic decisions about which turrets to build, when to upgrade them, and where to place them on the hex grid. A well-timed airstrike can change the flow of the game, but you'll have to wait before you can use it again. Unlock powerful upgrades for each turret class as you move across the Nyx system. As you play, the Proteans evolve new weapon resistances, behaviors, and movement capabilities to better destroy your defenses.
In CAMPAIGN MODE, battle through a series of maps as a military defense commander to protect the planet Nyx from the ever-evolving threat of the Proteans. Unlock weapons and upgrades and use them to fight against the Protean swarm and learn about the mysteries of Project Hastur.
In EXPERIMENT MODE, choose any map, tweak the parameters, and play infinitely to see what you can evolve. Change the number of creatures and the parameters of evolution, make your turrets invincible, or crank up the biomatter and experiment with the most powerful turret upgrades. Experiment mode lets you experience Project Hastur your way.
Each creature you will face has its own unique genome controlling its abilities, behaviors, and appearance. Those that make it the furthest and do the most damage to your defenses have the most offspring you will have to defeat in the next generation. The result? Evolution responds to the player’s strategy and makes every playthrough a unique experience.
Use four upgradable turret classes, plus airstrikes and combat robots, to fight against the Protean invasion. Make strategic decisions about which turrets to build, when to upgrade them, and where to place them on the hex grid. A well-timed airstrike can change the flow of the game, but you'll have to wait before you can use it again. Unlock powerful upgrades for each turret class as you move across the Nyx system. As you play, the Proteans evolve new weapon resistances, behaviors, and movement capabilities to better destroy your defenses.
In CAMPAIGN MODE, battle through a series of maps as a military defense commander to protect the planet Nyx from the ever-evolving threat of the Proteans. Unlock weapons and upgrades and use them to fight against the Protean swarm and learn about the mysteries of Project Hastur.
In EXPERIMENT MODE, choose any map, tweak the parameters, and play infinitely to see what you can evolve. Change the number of creatures and the parameters of evolution, make your turrets invincible, or crank up the biomatter and experiment with the most powerful turret upgrades. Experiment mode lets you experience Project Hastur your way.
Media gallery 5 screenshots · 0 videos
Screenshots
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System requirements Windows · macOS · Linux
Windows
Minimum
Minimum:- Requires a 64-bit processor and operating system
- OS *: Windows 7 SP1+, 64-bit only
- Processor: SSE2 instruction set support
- Memory: 1 GB RAM
- Graphics: DX10 (shader model 4.0) capabilities
- Storage: 1 GB available space
Recommended
Recommended:- Requires a 64-bit processor and operating system
macOS
Minimum
Minimum:- OS: macOS 10.11+
- Processor: SSE2 instruction set support
- Memory: 1 GB RAM
- Graphics: DX10 (shader model 4.0) capabilities
- Storage: 1 GB available space
Recommended
Recommended:Linux
Minimum
Minimum:- OS: Ubuntu 12.04+
- Processor: SSE2 instruction set support
- Memory: 1 GB RAM
- Graphics: DX10 (shader model 4.0) capabilities
- Storage: 1 GB available space
Recommended
Recommended:Game details Languages, features & support
- Publisher
- Polymorphic Games, University of Idaho
- Content warning
- At times in the game, the enemies can infect civilians. The civilians die as a result and there is artificial blood and body parts visible to the player.
- Features
- Single-player, Steam Cloud, Family Sharing
- Languages
- English*
*languages with full audio support - Support
- [email protected] Support site ↗
Compatibility & accessibility Steam Deck, controllers & access features
Can I Play This?
Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Structured language support (1)
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
Third-party requirements shown by Steam
Requires agreement to a 3rd-party EULA Project Hastur EULA
Steam store page
fresh · checked 2026-10-28
PCGamingWiki technical notes
External link only; SteamIQHQ does not ingest PCGamingWiki content.
More analysis Activity patterns, updates & developer tools
Genre Benchmarks
Player Count
Top 11%
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Developer Analytics
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Frequently Asked Questions
Is Project Hastur free to play?
Yes, Project Hastur is free to play on Steam.
What genre is Project Hastur?
Project Hastur is a Indie, Strategy game.
Who developed Project Hastur?
Project Hastur was developed by Polymorphic Games and published by Polymorphic Games.
What platforms does Project Hastur support?
Available on Steam for Windows, macOS, Linux.
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