Code ZIN: Esper Arena is a Free To Play anime-style third-person arena shooter. Test both your reflexes and strategy in adrenaline-inducing combat. Succeed and become immortalized or fail and be forgotten. This is your chance for glory.

Public builds
—No reading yet
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 26217457
Update posts
8 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
42 daysMiddle gap across the last 3 builds we saw
| Build | Went live | Patch notes |
|---|---|---|
| 26217457 | None posted | |
| 26216218 | None posted | |
| 25304223 | 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
| Posted | Update |
|---|---|
| 23 Jul 2026 | Changelogs #26.07.23 - New patch, new heal! Update |
| 16 Apr 2026 | Changelogs #26.04.15 Update |
| 11 Mar 2026 | Changelogs #26.03.11 - First Bot integration and more Update |
| 14 Feb 2026 | Changelogs #26.02.13 Update |
| 18 Dec 2025 | Changelogs #25.12.18 - Event mode and more Update |
| 12 Dec 2025 |
| Changelogs #25.12.12 - A new map Update |
| 25 Nov 2025 | Changelogs #25.11.25 - New weapon, new skill and more Update |
| 10 Nov 2025 | Early Access Update – Thank You and What’s Ahead 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