offline accessBuy Heroes of Science and Fiction Steam Offline Account
// what you get
- Steam account that already owns the game
- Step-by-step offline-mode guide
- Instant automated delivery after payment
- Replacement guarantee if access stops
Screenshots






Heroes of Science and Fiction
Heroes of Science and Fiction (formerly known as Silence of the Siren) is a turn-based strategy game where several different space-faring civilizations fight over control of a distant star system. Explore what’s left on the planets and secure resources to build mighty cities. Raise powerful armies and defeat your opponents on the battlefield!
Heroes of Science and Fiction contains 5 playable factions, four campaigns with 4 levels each and 30+ skirmish maps set in colorful environments.
Each faction brings its own base, 7 upgradeable unit types, a special skill and a set of commanders to choose from. There are 24 skills, 54 active commander abilities and various pieces of equipment, consumables and artifacts.
Playing Heroes of Science and Fiction offline
Pay with crypto
Checkout in USDT, BTC, ETH or LTC — no card needed.
Get the login
We deliver the account that owns the game, automatically, in minutes.
Play offline
Sign in, switch Steam to Offline Mode with our guide, and enjoy the full game.
Heroes of Science and Fiction — questions
How do I play Heroes of Science and Fiction after buying?
You receive the login for a Steam account that already owns Heroes of Science and Fiction. Sign in, switch Steam to Offline Mode using our short guide, and play the full game.
How fast is delivery?
Account details are delivered automatically within minutes of your crypto payment being confirmed.
How do I pay?
Crypto only — USDT, BTC, ETH or LTC. No bank card needed, works from any country.
What if it stops working?
Contact support with your order and we'll replace your access under our guarantee.



