
Hephaestus Protocol
Hephaestus Protocol is a mythology centric Bullet Heaven Action Roguelike where players forge weapons mid-battle, and carve through endless waves of enemies, including mythical beasts, as well as the Gods themselves.
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About Hephaestus Protocol
In Hephaestus Protocol, players pick one of over 50 playable heroes, and try to survive escalating waves of enemies while traversing an infinite, procedurally generated, map. The world draws on mythological pantheons, traditional fantasy, and historical elements. The core loop is pure Bullet Heaven adrenaline: move, dodge, and let players auto-firing arsenal do the work while they level up, accumulate catalysts, and decide which weapons to evolve. The primary innovation is the weapon combo system; items can be combined together into hybrid armaments that merge their stats, elemental affinities, attack patterns, and sprites, giving each run a distinct, build-defining identity.
Game details
Game details
Age ratings
Game modes
Languages
Features
Hephaestus Protocol — frequently asked questions
When does Hephaestus Protocol release?
Steam lists the Hephaestus Protocol release date as Jan 5, 2027.
How much will Hephaestus Protocol cost?
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System requirements
Minimum
- OS: Windows 10 (64-bit)
- Processor: Intel Core i3-6100 / AMD Ryzen 3 1200
- Memory: 4 GB RAM
- Graphics: Intel HD 520 / NVIDIA GTX 750 Ti (DirectX 11)
- DirectX: Version 11
- Storage: 500 MB available space
Recommended
- OS: Windows 10/11 (64-bit)
- Processor: Intel Core i5-8400 / AMD Ryzen 5 2600
- Memory: 8 GB RAM
- Graphics: NVIDIA GTX 1060 / AMD RX 580
- DirectX: Version 11
- Storage: 500 MB available space












