> ## Content Index
> Fetch the complete content index at: https://simstructures.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# Hostile Mars
- URL: https://simstructures.com/hostile-mars/
- Published: 2026-10-17T00:26:19.000Z
- Updated: 2026-10-17T00:26:19.000Z
- Description: Hostile Mars is a factory-building game focused on combat! Explore an open world and discover new tech to unlock powerful weapons and structures. Create efficient supply chains using delivery bots…
- Author: ENGN GAME STUDIO LLC
- Tags: Automation, Base-Building, Exploration, Sandbox, Logistics, Co-op, #w5

Hostile Mars is a factory-building game focused on combat! Explore an open world and discover new tech to unlock powerful weapons and structures. Create efficient supply chains using delivery bots. Salvage destroyed enemies for resources. Design your base to withstand increasing waves of enemies!

### Screenshots

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_7c71dcd163b3214c9ca7e8f999df1c4cce46805e.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_6ee8e585de3df6d2a792be4dab270bf928c7c021.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_57fa713fc8a0ce8895986c84450d7fef0cdf2b2f.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_4f0f6311000f2b5fa49118d8e1d7a0232d779ea4.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_4ae94634fcfc681ae2f10563cf1fbd701772fdcd.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_b4de814ce7e99fe08790ebe663b28381273e39eb.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_d5034f4f04ee1fe957d8c353aab2e4fa2b7029c9.1920x1080.jpg?t=1789379240)

![Screenshot](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1402820/ss_e4c0fc458d62cab245311148d97caa9d92c4c9ab.1920x1080.jpg?t=1789379240)

### Trailer

### Technical Architecture

- **Engine:** Unspecified (Pending Dev Claim)
- **AI Systems:** Unspecified
- **State/Architecture:** Unspecified
- **Status:** Pending Dev Claim

## 🚀 Hostile Mars Playtest Begins Friday, September 4!

### **We’re excited to announce that the *Hostile Mars* playtest will begin this Friday!**

Access will be granted gradually, starting with a small group of players. This will help us monitor stability, identify any critical issues, and respond to early feedback. If everything is running smoothly, we’ll welcome a larger group of players into the playtest shortly afterward.

The playtest will remain open through September 13th. If you’re interested in taking part, request access using the Steam Playtest button on the store page. We expect to open access more broadly as the test progresses, so don’t worry if you aren’t admitted immediately.

This is an active development build, and your feedback will be incredibly valuable. If you encounter a bug, have trouble understanding something, or simply have thoughts about the experience, please let us know in our Discord.

Thank you for supporting *Hostile Mars*. We’re looking forward to seeing you on the surface... and hearing what you think! 

Please do not stream, record, or publicly post content from the playtest. Screenshots, feedback, bug reports, and playtest discussions may be shared in the designated channels on our official Discord server.

Join the HM Discord:

https://discord.gg/Xd88eF8Teg

We love you.

\-HM Team

[Read the original announcement on Steam →](https://steamstore-a.akamaihd.net/news/externalpost/steam%5Fcommunity%5Fannouncements/1842212951314405?ref=simstructures.com)

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*Imported from [Hostile Mars on Steam](https://store.steampowered.com/app/1402820/?ref=simstructures.com). Steam genres: Action, Adventure, Strategy.*