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The Red Solstice 2280 A.D. The last few survivors of a ruined Earth seek a new home: Mars, a planet whose inhabitants didn't take too kindly to outsiders. The Red Solstice is a tense, tactical, squad-based action game. Fight to survive with up to 8 players in co-op, or lead your own squad in single-player mode. Scavenge, strategize and survive the alien onslaught.
Public builds
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Counted once we have watched for 90 days (since 21 Oct 2026)
Distinct builds deployed to a game's public (default) Steam branch, as Steam's client network describes them.
Checked within minutes of each Steam change. Observed since 21 Oct 2026.
Source: Steam client network (PICS), App info, public branch. Full methodology
Latest public build
Build 4278674
Update posts
0 postsPosts announcing an update, tagged or not
Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.
Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology
Typical gap between builds
Not enough builds yetPublic Builds| Build | Went live | Patch notes |
|---|---|---|
| 4278674 | None posted |
From Steam’s client network, last checked . Builds before 21 Oct 2026, when we started watching, aren't listed. Patch notes are the developer’s update post from an hour before to a day after the build. Not every build gets one. How we count
Earlier Updates| Posted | Update |
|---|---|
| 2 Sept 2021 | MARINES! RS2 UPDATE 1.6 NOW AVAILABLE Update |
| 24 Jul 2020 | Red Solstice 1 and Red Solstice 2 update! Update |
| 16 Aug 2019 | The Red Solstice 2: Survivors update! Update |
| 24 Dec 2018 | The Red Solstice patch! Happy Holidays! Update |
| 24 May 2018 | SC: MIA patch, coupons and new info! Update |
| 6 Apr 2018 |
| Info and patch! Update |
| 16 Feb 2018 | Patch before new DLC! :) Update |
| 27 Dec 2017 | Medal update! Update |
| 9 Mar 2017 | Biggest update so far - Introducing Survival Mode for new game! Update |
| 28 Oct 2016 | Halloween update! Pumpkins on the road! And patch! Update |
| 30 Sept 2016 | Balance changes and fixes Patch notes |
| 2 Sept 2016 | Boss patch! - Cerberus Red and Cerberus Green Patch notes |
| 13 Jul 2016 | The Red Solstice 1.161 update, tournament announcement and more! Patch notes |
| 1 Jul 2016 | The Red Solstice FPS drop issue update, Summer Sale 60% off Patch notes |
| 26 Feb 2016 | New DLC and Steam Daily Deal 50%! Patch notes |
| 9 Feb 2016 | Gameplay and Medal changes update! Update |
| 22 Dec 2015 | The Winter Solstice 1.34 update Update |
| 21 Sept 2015 | Point of No Return: new gameplay mod, medals, multiplayer bots Patch notes |
| 28 Jul 2015 | The Red Solstice update and +25% exp week Update |
| 24 Jul 2015 | The Red Solstice 1.006 update and +25% XP weekend Update |
| 15 Jul 2015 | An update! Still working, still trying! Update |
| 26 Jun 2015 | The Red Solstice pre release update Update |
| 11 Jun 2015 | The Red Solstice 3.85: Solo play in Tactical mode, new UI. and much more! Patch notes |
| 8 May 2015 | The Red Solstice 3.50 update. New sectors, new skills, UI updates Update |
| 5 Apr 2015 | Easter is here, so are the updates! Update |
| 21 Feb 2015 | The red solstice 3.02. We got updatez! Patch notes |
| 6 Feb 2015 | The red solstice 2.99 update. Now with integrated voice chat, new GUI, statistics and more bugfixes Update |
| 5 Dec 2014 | Update 2.68 new missions, new item and more Update |
| 22 Nov 2014 | Version 2.60 Update |
| 22 Oct 2014 | Update 2.40 is here! Update |
| 17 Oct 2014 | Horrors of Mars - INTEL UPDATE #2 Update |
| 5 Oct 2014 | Horrors of Mars - INTEL UPDATE Update |
| 19 Sept 2014 | Update 2.29 - Assault of the Rookies! Update |
| 29 Aug 2014 | The Red Solstice Version 2.0: Better Network, More Fun! Update |
| 23 Aug 2014 | Dying has just become even more fun. Version 1.94 is out! Update |
| 9 Aug 2014 | Update 1.88 - Balancing beetwen bugfixes and new content! Update |
| 2 Aug 2014 | Update v1.83 - A new BOSS, Fixes, Tweaks and Changes Update |
| 24 Jul 2014 | Boom! Female Marines, New Map with 100% More Gameplay Now Available With Update v1.78 Update |
| 23 Jul 2014 | Update v1.73 - More Stability, More Hotfixes, More Problems Solved! Update |
| 19 Jul 2014 | Stability & Gameplay Update is LIVE! Update |
| 14 Jul 2014 | A KILLER First Weekend + Pricing Adjustment & Updates! Update |
Steam keeps no record of past build numbers, so before 21 Oct 2026 a game’s update history comes from its own Steam news: posts tagged as patch notes, and untagged posts that plainly announce a patch or a released update. Older posts are still being read in, most played games first. How we count
