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TASMON: Taskbar Monsters

TASMON: Taskbar Monsters

An idle RPG that lives in your taskbar. While you work, your monsters auto-battle and bring back eggs and loot. Collect 156+ species, evolve and awaken them, forge one-of-a-kind serial-stamped weapons, and shape every weekly update from the in-game suggestion box. Free to play.

Released Aug 11, 2026 Developer ProjectZeta Platforms Windows CasualRPGIdlerAuto BattlerRoguelite
View on Steam ↗ Free (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

66.0%positive103 reviews
Recommended · 3 found this helpful

“It did it's job idling on my second screen while I played other games. Good job.”

— a player, Steam review · 2 hrs played
Recommended · 3 found this helpful

“A simple, cute idle game you can keep an eye on while working ^3^”

— a player, Steam review · 223 hrs played
Not recommended · 2 found this helpful

“I’ve changed my review to negative because I haven't seen any positive changes from the developer. -The latest DLC is overpriced for what it actually contains; even though it’s aimed at new players, those of us who have been playing for a while still want to collect what it…”

— a player, Steam review · 455 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

50achievements
7.8%median completion
1.2%rarest: Gear Dex 140
45.1% of players 18.0% of players 17.4% of players 16.8% of players 14.9% of players 13.2% of players 13.0% of players 12.5% of players 11.9% of players 11.8% of players 11.7% of players 11.7% of players 11.1% of players 10.9% of players 10.8% of players 10.5% of players 10.0% of players 9.8% of players 9.3% of players 9.2% of players 9.0% of players 8.7% of players 8.5% of players 8.5% of players 8.0% of players 7.8% of players 7.4% of players 6.5% of players 6.2% of players 6.0% of players 5.7% of players 5.0% of players 4.5% of players 4.0% of players 3.9% of players 3.8% of players 3.8% of players 3.3% of players 3.2% of players 2.8% of players 2.8% of players 2.8% of players 2.6% of players 1.9% of players 1.7% of players 1.4% of players 1.4% of players 1.3% of players 1.3% of players 1.2% of players 45.1% 0% most earned rarest
Almost everyone has
45.1%First Egg — Hatch 1 egg
18.0%Single Heal 5000 — Restore 5000+ HP with a single heal
17.4%One Hit 100K — Deal 100K+ damage in a single hit
Rarest badges of honor
1.2%Gear Dex 140 — Fill 140 slots of the gear compendium
1.3%Gear Lv150 — Obtain a piece of Lv150 gear
1.3%Oblivion II Cleared — Clear 10-10 on Oblivion II

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 21, 2026
Expeditions rebuilt - three eggs, an accessory, auto expeditions

探索を作り直しました。 ・持ち帰る卵が 3個 になりました。難易度を選べるようになり、送った3体の総合戦力で成功率が決まります ・探索でしか出ないタスモン(18体)がいます。持ち帰った卵の一部がこの卵に化けます ・アクセサリーを1個 持ち帰るようになりました。出る確率は難易度の成功率と同じです ・シーズンの卵も低確率で持ち帰ります ・同じ編成でそのままもう一度出せる「受け取って また出す」を追加し

Sep 18, 2026
[Fix] Some skill numbers had been lowered

With the new skills added, an unintended adjustment also lowered the numbers on other skills. We have fixed that. Please update the game again.

Sep 18, 2026
Update: rare skills, skill picks, status labels and league ranks

We have fixed a problem where some skills unexpectedly lost power. Please update the game again. Adjusted how often rare skills appear Fixed a situation where rare candidates never appeared on Arcana

Sep 14, 2026
[Update] Bug fixes and balance adjustments

Bug fixes and balance adjustments ◆ Unique character buffs were not being applied properly They are now fixed and apply as intended. ◆ The effect shown when a rare item drops from a chest has been rew

Sep 13, 2026
Major Update: New Difficulties, Score League, Hearts, and the Enhanced Pass

Scheduled to go live on September 13 at 6:00 AM PDT. Tier II - from "Normal II" through "Torment II" Four new difficulties open beyond Oblivion I. Equipment level bands extend to match the gear that d

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresCasual, RPG, Free To Play
Player tagsCasual · RPG · Idler · Auto Battler · Roguelite · 2D · Cute · Pixel Graphics · Creature Collector · Fantasy · Relaxing · Automation (Steam store community voting)
FeaturesSingle-player · Adjustable Text Size · Camera Comfort · #category_contrast_controls · Custom Volume Controls · #category_playable_at_your_own_pace · Playable without Timed Input · Family Sharing
LanguagesEnglish, Japanese, Simplified Chinese, Spanish - Spain, Portuguese - Brazil, French, Russian
Achievements50
Minimum system requirements (PC)

Minimum: OS: Windows 10 64-bit Processor: Intel Core i3 or equivalent (2 cores) Memory: 4 GB RAM Graphics: WebGL 2.0 compatible GPU (Intel HD Graphics 4000 or better) Storage: 2 GB available space