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Underworld Idle An idle dungeon management game, where high tier units can create low tier units.
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 13376973
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 |
|---|---|---|
| 13376973 | Version 1.02d |
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 |
|---|---|
| 6 Feb 2024 | Version 1.02d Patch notes |
| 7 Nov 2023 | Version 1.02 - Pearls are now not reset on restart Update |
| 5 Sept 2023 | Version 1.01 - Small Bugfixes, Special Reward Update |
| 2 Feb 2023 | Version 1.0 Update |
| 30 Jan 2023 | Offline Boost, Preparing to Exit Early Access, Bugfixes Update |
| App | Players now | Latest build |
|---|---|---|
| Underworld Idle Playtest · App 1610280 | No count | 6660430 · |
Separate Steam apps for test, staging and playtest versions of Underworld Idle. They have no store page, so they aren’t counted as games or releases. Builds come from Steam’s client network, players from the Steam Web API every few hours. Steam gives no count for an app nobody can launch. How we count
| 25 Jan 2023 |
| Version 0.70 - More bugfixes Patch notes |
| 14 Jan 2023 | Ver. 0.68 - Bugfixes Patch notes |
| 6 Jan 2023 | Version 0.67 Patch notes |
| 8 Nov 2022 | Version 0.63 - Dark World Update |
| 6 Jul 2022 | Version 0.62 - new challenges Patch notes |
| 9 Jun 2022 | Version 0.61 - Undead world, new mushrooms Update |
| 17 Apr 2022 | Version 0.60 - secondary contracts for undea, dead man's piggy bank, sleep mode Patch notes |
| 23 Feb 2022 | Version 0.59 - Oyster of the Deep Update |
| 19 Jan 2022 | Version 0.58 - Unit descriptions, bugfixes Patch notes |
| 4 Jan 2022 | Version 0.57 - Golden Gates and New Worlds Update |
| 20 Dec 2021 | Versions 0.55 and 0.56 Patch notes |
| 20 Nov 2021 | Versions 0.54 Patch notes |
| 4 Nov 2021 | Version 0.53 - Runes (new mechanics), buy button settings Update |
| 28 Oct 2021 | Versions 0.52 and 0.52b Patch notes |
| 21 Sept 2021 | Versions 0.49 and 0.49b Patch notes |
| 29 Aug 2021 | Version 0.48c - Small update (control, shift, drowners automation) Patch notes |
| 21 Aug 2021 | Version 0.48 - Secondary Contracts for Demons, Infernal Piggy Bank Update |
| 13 Aug 2021 | Version 0.47g - Small update (gear reset improved) Patch notes |
| 19 Jul 2021 | Version 0.46 - Warlocks restart, Global spells, Gift from the chest Update |
| 6 Jul 2021 | Version 0.45 Patch notes |
| 18 Jun 2021 | Version 0.44 Patch notes |
| 9 Jun 2021 | Version 0.43 Patch notes |
| 28 May 2021 | Version 0.42c - contract to limit the number of units you buy by holding Control Patch notes |
| 26 May 2021 | Game updated: version 0.42 Patch notes |
| 22 May 2021 | Game updated: version 0.41 Patch notes |
| 19 May 2021 | Quick update: 3 contracts (and restart) for the drowners Patch notes |
| 17 May 2021 | Game updated: version 0.40 Patch notes |
| 12 May 2021 | Game updated: version 0.39 Patch notes |
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
