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IDLE BOSS RUSHNewsUPDATE 1.3 (Ice Giant, Diner, Localization)
Major update

UPDATE 1.3 (Ice Giant, Diner, Localization)

IDLE BOSS RUSH · published 20 Apr 2026, 18:12 UTC · build 22871006

All newsPlayers around this dateRead on Steam

UPDATE 1.3 (Ice Giant, Diner, Localization)

New Unit, New Structure, Localization for 5 languages, a new, VERY hard Boss Rush. Content!

What's new? (v. 1.3.5):

- New structure: Diner. Do you have a few spare materials? Why not make a Shish Tails, a Lava Cake, a Cursed Chips, to add some flavour to the lives of your constantly stressed residents? There are 7 different dishes, and each gives different, strong bonuses. ːRARE_TOADː

- New unit: Ice Giant. The first unit larger than a Boss! ːuhhhː

- Added localization for 5 languages: Japanese, Simplified Chinese, Korean, Polish, and French. ːVACATIONː

- Added a true BOSS RUSH, where you need to beat every Level 4 Boss in a row ːTIMES_UPː

- Every Skill Tree Node that was ever bought stays visible forever. A small change that was heavily requested, but to be clear, it's not the planned rework.

- Now, if a Boss ability is disabled, it shows crossed out

- Slightly adjusted Phoenix's attack duration (DPS stays similar)

- Fixed a crash occurring when Alchemist was built before Snowboar was beaten for the first time (thank you @killerdanx for great details on when it happens)

- Fixed Crystal Ring effect, increasing Physical damage as well

- Fixed Phoenix rebirth not working properly when rebirthed while attacking

- Various improvements for Steam Deck (resolution and UI size), but it needs more work

Steam Community Items / Cards

Steam Cards are now available. If you get them all, you can get a profile background, a badge, and cool emotes, such as: ːFIRE_IdleBossRushː ːLARGEST_DIAMOND_IN_THE_WORLDː ːMY_HOUSEː ːRARE_TOADː ːSEE_YOUː ːSKULL_POISONː ːTIMES_UPː ːVACATIONː ːWORK_WORKː ːuhhhː

ROADMAP

The update brings most of the content planned for this update, minus Steam Deck verified and new achievements.

We made some improvements for Steam Deck specifically, but it's not 'verified'; we will continue working to make it better.

As for achievements, we planned to add them, but it turns out to be controversial. Some players do not want to add more achievements as it'll remove the perfect game status (100% achievements). A potential solution is to add them to the game, but not on Steam. What do you think about this topic?

What else would you like to see in the game? Share your ideas - we read them all. The new structure, Diner, is proof of that, as an idea for it was shared by a Discord member @MrCurrySpoon. Thanks!

Enjoy!

Mike & Ada

More from IDLE BOSS RUSH

Other announcements

All news
Game update1 Aug 2026HOTFIX 1.3.7HOTFIX 1.3.7 - Fixed an issue with the weather achievement - Fixed hard prestige and quit buttons not working in certain circumstances - Replaced LMB reference in text with a universal approach - Improved readability in a few places, mostly in the settings menuGame update22 Jul 2026(small) UPDATE 1.3.6(small) UPDATE 1.3.6 - Fixed a bug causing the elemental status effects' tooltips not to appear - Changed how 'Larger UI' works - instead of scaling the entire UI slightly, now it enlarges small texts - When the game is launched on a Steam Deck, the resolution is automatically set to 1280x800, and the 'Larger UI' setting is turned on - Assigned localization to a few omitted textsMajor update28 Feb 2026UPDATE 1.2 (Strange Tablet, New Item)UPDATE 1.2 (Strange Tablet, New Item) The main goal of this update is to improve Burn builds and bring back the Strange Tablet “Boss” from the demo. There’s a new item, a new collection, leaderboards for Arena, a few crucial fixes (crashes, achievements, rebirth time), and multiple lesser ones, some of which have been here since the beginning. Steam Cards will be available next week (see below)…