MIR4 is a free-to-play open world K-fantasy MMORPG that can be cross-played on both PC and mobile devices. MIR4 is full of action and features numerous large scale clan PVP battles. Join now and become a legend.

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 26148088
Update posts
24 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 yet| Build | Went live | Patch notes |
|---|---|---|
| 26148088 | Patch Note - October 27th | |
| 25882209 | Patch Note - October 13th |
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
| Posted | Update |
|---|---|
| 12 Oct 2026 | Patch Note - October 13th Update |
| 28 Sept 2026 | Patch Note - September 29th Update |
| 14 Sept 2026 | Patch Note - September 15th Update |
| 31 Aug 2026 | Patch Note - September 1st Update |
| 17 Aug 2026 | Patch Note - August 18 Update |
| 3 Aug 2026 |
| Patch Note - August 4th Update |
| 20 Jul 2026 | Patch Note - July 21st Update |
| 6 Jul 2026 | Patch Note - July 7th Update |
| 22 Jun 2026 | Patch Note - June 23rd Update |
| 8 Jun 2026 | Patch Note - June 9th Update |
| 25 May 2026 | Patch Note - May 26th Update |
| 11 May 2026 | Patch Note - May 12th Update |
| 13 Apr 2026 | Patch Note - April 14th Update |
| 30 Mar 2026 | Patch Note - March 31st Update |
| 16 Mar 2026 | Patch Note - March 17th Update |
| 2 Mar 2026 | Patch Note - March 3rd Update |
| 2 Feb 2026 | Patch Note - February 3rd Update |
| 19 Jan 2026 | Patch Note - January 20th Update |
| 5 Jan 2026 | Patch Note - January 6th Update |
| 22 Dec 2025 | Patch Note - December 23rd Update |
| 8 Dec 2025 | Patch Note - December 9th Update |
| 24 Nov 2025 | Patch Note - November 25th Update |
| 10 Nov 2025 | Patch Note - November 11th Update |
| 28 Oct 2025 | (Fixed: October 29th) Game connection issue and the Unreal Engine 4.27 Update Update |
| 27 Oct 2025 | Patch Note - October 28th Update |
| 13 Oct 2025 | Patch Note - October 14th Update |
| 29 Sept 2025 | Patch Note - September 30th Update |
| 15 Sept 2025 | Patch Note - September 16th Update |
| 1 Sept 2025 | Patch Note - September 2nd Update |
| 18 Aug 2025 | Patch Note - August 19th Update |
| 4 Aug 2025 | Patch Note - August 5th Update |
| 21 Jul 2025 | Patch Note - July 22nd Update |
| 7 Jul 2025 | Patch Note - July 8th Update |
| 23 Jun 2025 | Patch Note - June 24th Update |
| 9 Jun 2025 | Patch Note - June 10th Update |
| 26 May 2025 | Patch Note - May 27th Update |
| 12 May 2025 | Patch Note - May 13th Update |
| 28 Apr 2025 | Patch Note - April 29th Update |
| 31 Mar 2025 | Patch Note - April 1st Update |
| 17 Mar 2025 | Patch Note - March 18th Update |
| 3 Mar 2025 | Patch Note - March 4th Update |
| 17 Feb 2025 | Patch Note - February 18th Update |
| 20 Jan 2025 | Patch Note - January 21st (Changed) Update |
| 6 Jan 2025 | Patch Note - January 7th Update |
| 23 Dec 2024 | Patch Note - December 24th Update |
| 9 Dec 2024 | Patch Note - December 10th Update |
| 25 Nov 2024 | Patch Note - November 26th Update |
| 28 Oct 2024 | Patch Note - October 29th Update |
| 14 Oct 2024 | Patch Note - October 15th Update |
| 18 Sept 2024 | Patch Note - September 19th Update |
Showing the latest 50 of 155. Show all
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