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Bunker Builder Simulator: Prologue
Bunker Builder Simulator: Prologue is just part of the gameplay that awaits you in the full version of the game. Plan your work, dig a hole and build a bunker, that will survive anything! Manage safety, needs and moods of your clients, so you can become the best architect and earn a fortune.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.
“The world may be ending. Civilization could collapse at any moment. Humanity needs somewhere safe to survive. Fortunately, they hired me. I dug hole. I poured concrete. I installed things. I made bunker. Very secure. Very responsible. Then I realized I could make it look nice.…”
— a player, Steam review · 1 hrs played“i can not hammer in the nail why”
— a player, Steam review · 2 hrs played“this game has so many problems that i am not even gonna bother listing them... i think this one is a complete fail, i am beyond frustrated... it has potential or had potential, but there has been no updates since 24, seems like a cheap cash grab.”
— a player, Steam review · 1 hrs playedLatest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
MAJOR UPDATE
Greetings, Bunker Enthusiasts! 👋 Thank you for your feedback 🙌 We are thrilled to announce a significant update to Bunker Builder Simulator, introducing a new Prologue version . 🤩 This update brings s
THE STEAM AWARDS 🏆
Hello Players! 👷 We are pleased to announce that our Prologue of the upcoming Bunker Builder Simulator is included in this year's Steam Awards and is nominated in the " Sit Back and Relax " category!
RELEASED! PLAY NOW! 🔥
It's time to start building bunkers! ⚒️ 💪 Play a free Prologue now! ⤵️ https://store.steampowered.com/app/2148940/Bunker_Builder_Simulator_Prologue/ Prologue is just part of the gameplay that awaits y
STREAM 🎥
LESS THEN 3h TO PREMIERE!! 🔥 You can now watch our pre-recorded stream, which shows the first stages of the game. 💪 We are launching at 4 PM CEST! ⏳ https://store.steampowered.com/app/2148940/Bunker_B
LAUNCHING TODAY! 🔥
We are launching at 4 PM CEST! 💪 ⤵️ https://store.steampowered.com/app/2148940/Bunker_Builder_Simulator_Prologue/ In about 9 hours you will have the opportunity to play the free prologue of Bunker Bui
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-26.
| Genres | Casual, Indie, Simulation |
| Player tags | Simulation · Building · Base Building · Destruction · Management · Realistic · Casual · Sandbox · First-Person · Relaxing · Design & Illustration · Atmospheric (Steam store community voting) |
| Features | Single-player · Family Sharing |
| Languages | English * , French, Italian, German, Spanish - Spain, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Turkish * |
| Official site | https://games-i.com/ |
Minimum system requirements (PC)
Minimum: OS: Windows 10 Processor: Intel Core i3 3.0 GHz Memory: 8 GB RAM Graphics: NVidia GeForce GTX 780 DirectX: Version 11 Storage: 3 GB available space