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Oasis Mission: Colony Sim
A Sci-Fi colony and strategy sim with a complex economy, immersive logistics, and a war against the rise of the machines! Build your colony and ensure supplies for your people. Automate industrial ships and create combat groups to defend against waves of enemies.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.
“This game is interesting at first, but it have some small issue: - the extractor building is bugged, and it not show when placing. Meaning, you cannot build it. (Mac OS) - the alarm for enemy is basically invisible. I noticed enemies where there only after they destroy half of…”
— a player, Steam review · 4 hrs played“cheap unfinished trash. Cannot even select to which warehouse to deliver resources, one warehouse is full while factory near by doesn't work becasue it has no resources, you can create tranfer routes between warehouses, but that doesn't work. If it did work, it'll be just…”
— a player, Steam review · 4 hrs played“Game abandoned, Bruh... https://steamcommunity.com/app/2658640/discussions/0/599648005874845653/”
— a player, Steam review · 4 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.
I’m announcing my new game: Sherpa's Caravan!
🏔 🚐 ⛺️ A game about a former Sherpa who bought himself a van and travels through a cozy open world, helping other adventurers with transport, crafting, and cooking! A relaxing atmosphere of outdoor ad
0.99.0 🎉 Almost Full Release! New Maps, Design, Resources, Buildings, Features
Hello everyone, and a huge thank you for your support throughout this time! I’m excited to announce that I’ve released the full gameplay of the game! After a few weeks of testing and fixes, I’ll press
0.9.7 – Colony Overview, Production Limits, Balance & Gameplay Fixes
Hello everyone! ❤️ In this update, I’ve added a Colony Overview and production limits, along with a dozen fixes and improvements! Colony Overview I received a lot of feedback requesting a colony overv
0.9.6 🔥 Combat system, gameplay, engine, graphics, and performance improvements
Hello everyone! While the Steam strategy festival was underway, featuring Oasis Mission, I was hard at work developing this major update! It consists of three parts: Combat system improvements General
0.9.6-0.10.0 – Announcement of Upcoming Updates
Hello everyone! I want to share my plans for the upcoming updates! First of all, I can see that the last three updates have made the game much more intuitive, and the feedback has been overwhelmingly
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-26.
| Genres | Indie, Strategy |
| Player tags | City Builder · Colony Sim · Automation · Strategy · Resource Management · Wargame · Base-Building · Building · Immersive Sim · RTS · Management · Tactical RPG (SteamSpy community voting) |
| Features | Single-player · Family Sharing |
| Languages | English, French, German, Spanish - Spain, Portuguese - Brazil, Simplified Chinese, Russian, Turkish, Japanese, Italian, Korean, Swedish |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 Processor: X64 Dual Core CPU, 3+ GHz Memory: 8 GB RAM Graphics: Discrete GPU with 4 GB Ram DirectX: Version 11 Storage: 4 GB available space Sound Card: Any