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IDLE BOSS RUSH

IDLE BOSS RUSH

by Irid Games

★ 67%
Price $7.99
Avg Players 54
Reviews 805
Released Sep 29, 2025
Base BuildingBoss RushBuildingCasual
Prestige loop Offline progress

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Idle Boss Rush pairs boss battles with incremental progression, letting you farm loot and unlock upgrades while the game runs offline. However, players report severe balance issues in the full release—upgrade costs become prohibitively expensive early on, and the prestige system forces extended grinding with unclear progression paths, making the initial demo experience difficult to sustain.

About this game

What players are saying

▼ Not recommended 0 hrs
Played the demo, bought the full release and refunded it.

When upgrading in the demo, the balance felt good like I was making steady progress and hitting breakpoints with the farm and my damage, but the full release completely scales the cost/benefit of upgrading unreasonably.

The cost of everything is ridiculous, at 9 warriors you now need to spend 40k to get a 10th, the farm costs like 100k to upgrade from 4k gold per harvest. The cost basically jumps a multiple of 5-10x for no reason. You cannot just buy units anymore cause after around 10 of any unit the cost of the next then sky rockets. I was upgrading a unit and for some reason the cost goes from like 40k to 600k? Like wtf?

Poison is also no longer useful in the earlygame and only really useful in the later stages because you have to stack 10 times more poison each time, 7/77/777. I get this fixes the issue of poison originally being useless in the late game, cause 3000 damage becomes nothing, but in the mid game, you never get the poison stacked to 777 and by the time i stack to 77, the boss is almost dead already.

Devs lost the plot thinking this is a AAA title that needs 30 hours of gameplay, and I heard it will take you 30 hours to complete this grind. Why? Increasing timers and slowing progress just isn't fun, the demo felt way better at pacing.

TLDR; The demo respected your time, and the full release doesn't.
159 found helpful Steam ↗
▼ Not recommended 26 hrs
game is fun for a couple of hours, then it becomes a grindfest that you have to keep the game running for dozens of hours to farm material for the worst prestige system i've ever seen on a idle game.
69 found helpful Steam ↗
▼ Not recommended 10 hrs
really enjoyed the demo but the full release is so weird with its upgrades and stuff after just like 5 hours of playing im reaching "max" on basically everything but theres like 5 bosses left to go and no clear way forward
64 found helpful Steam ↗

Reviews are by Steam users, hosted on Steam.

Latest updates

UPDATE 1.3 (Ice Giant, Diner, Localization)

60 days ago
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 workSteam Community Items / CardsSteam 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 ːuhhhːROADMAPThe 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 achiev...

UPDATE 1.2 (Strange Tablet, New Item)

111 days ago
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).All changes (v. 1.2.10):- Added Strange Tablet Boss Rush (fight with a new “Boss” that was previously only in the demo version, beating it unlocks Strange Pet and the new item)- Added a leaderboard for each Boss Rush - Added a new item collection: Slayer Collection I - Added a new item: Inferno Incense - Added a slight variance in Chest Helper's move speed so they don’t look like a single person - Show additional info on a few Items: Zephyr Fan stacks, Ungodly Flail if flailing is active, Inferno Incense bonus stacks applied, Dowsing Rows chest count, Toxic Tongue bonus stacks applied- Fixed an issue causing a crash after 1-2 hours of gameplay - Various memory optimizations - Validate if each unlocked achievement was unlocked on Steam when entering the achievements panel for the first time (and unlock them if needed) - Alchemist and Marketplace don't need to be hovered on to begin the restock countdown after launching the game - Shorten Burn stacks count text if needed- Fixed Phoenix rebirth duration calculations (now it's 30s base as intended) - Fixed Hypnothreeck Lv. 3 and Lv. 4 Health and loot chances being the same as Lv. 2 - Fixed Boss names being cut short if the respawn happened very fast - Fixed Temple of Clouds’ UI being cut out when the larger UI setting was active - Fixed a few ‘Slayer’ achievements being called ‘Hunter’ instead - Fixed loot chances showing values above 100% - Fixed Monsoonael Lv. 2-4 position being too close to the ground - Removed the additional offset added between Ballista's bolts on Great shot (visual change only) - Adjusted Baldog’s collider t...

ROADMAP - content of the upcoming updates

147 days ago
Hi everyone!Sorry for the silence since the last update! A few major real-life changes were stacked with the game’s release. For some time, we combined it with working on updates, but at one point, it got overwhelming. We had to step back to handle the urgent matters, and it took longer than expected. The communication since then has been lackluster on our part. We apologize.ROADMAPNow, we’re back to consistently working on new updates, but not at the same intensity as before. To add a time framework to all this, we are sharing a roadmap. You will know when to expect the next updates, and what’s planned for them. The updates might contain more/less/other changes, and of course bugfixes. If the dates were to change, we will let you know.We're glad Update 1.1 got a good reception. Hopefully, we’ll keep it up with the next ones.Thank you for all the comments.Mike & Ada

Posts come from Steam's official announcements feed.

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