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Zero Stress King: Idle Defense

Zero Stress King: Idle Defense

by Pauloondra

★ 88%
Price $4.99
Avg Players 168
Reviews 1,751
Released Mar 30, 2026
AdventureArcadeAuto BattlerCasual
Prestige loop Offline progress

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Zero Stress King wraps idle-game mechanics in a tower-defense skin where enemies never breach your lava-protected walls. Resources trickle in passively while you're away, funding unit purchases and producer buildings across multiple tiers, with prestige systems available for subsequent runs. It's designed for players seeking low-commitment progression that rewards checking back every few hours without demanding active engagement.

About this game

Players, last 30 days

Peak 1,466 · Low 38

Daily peak concurrent players, sampled once a night from Steam.

What players are saying

▼ Not recommended 0 hrs
The settings/options menus contain giant, unremovable pop-up advertisements for other games. The very idea of having ads like that in a paid game is abhorrent. Leave that garbage in free-to-play games where it belongs.
98 found helpful Steam ↗
▲ Recommended 3 hrs
Bombastic game. Didn't expect to be THAT MUCH FUN.
> game running in a background
> come back every few hours
> get tons of resources
> purchase new upgrades
> feel yourself like an absolute gigachad for doing nothing
> refuse to elaborate further
> leave (a positive review)
58 found helpful Steam ↗
▼ Not recommended 7 hrs
Prestige options do not meaningfully speed up the early game enough. They are also, thankfully, not meaningful enough that you will be missing them when you beat the final boss with 10+ banked. Resources have no use beyond buying their associated tier's units and producer building such that they become completely meaningless after you complete the associated tier.

Overall this is just not a well designed or thought out system.
51 found helpful Steam ↗

Reviews are by Steam users, hosted on Steam.

Latest updates

2.01 - bug-fix, stress-kill

1 day ago
Found and most likely killed the bug that was crashing the game on the latest islandsAchievement Perfectinum has been fixed Achievement 1M has been replaced with another, much easier. Because no one is getting stressed! Not on my watch! ːstimulationː

v2.0 - A huge content boost! (and a price boost, later)

2 days ago
ːhappy_yetiː I'm incredibly proud to present the grand v2.0 update! ːcoolstar2022ːAdded:ːzsk_speedːNew islandsːzsk_speedː8 defenders with new attack and damage typesːzsk_speedː16 mobs, some with special abilitiesːzsk_speedː2 monumentsːzsk_speedː2 boss fights and 2 boss challengesːzsk_speedː7 new achievementsːzsk_speedːA pile of new skills, infinite ones among themːzsk_winːTrophies are now enough for all friends at once (you all asked for this!) Smaller fixes and improvements:ːzsk_speedːBoss buttons moved to the bottom so they don't block the statsːzsk_speedːKnockback units now make the most of every shot instead of wasting them on dying mobsːzsk_speedːSlowing dryads pick the target that covers as many unslowed enemies as possible ːzsk_speedːLoot skills give more, and some of them became multipliersːzsk_speedːSaving is protected against power loss and damaged filesːzsk_speedːA new way of showing numbers, especially for Japan, China and Korea ːzsk_speedːBugfixes and optimization, lots of themːsteamsunnyːBeach mode got its own legal cheats: a "nuke" on the field, enemy waves on demand, faster income and switching friends without restarting the run.Important! This is not a DLC, the update is part of the base game. But soon I plan to raise the price a little. So for everyone who buys early this is free content (and my ː8bitheartːhuge thanksː8bitheartː)

Tiny Teams + an a HUGE update announcement!

47 days ago
ːhappy_yetiː Happy to share with you that Zero Stress King was officially selected for the ːzsk_winːTiny Teams Fest! ːzsk_winːAlso, I really do make a big update I've promised before:ːcoolstar2022ː New islands!ːzsk_speedː 8 new defenders + ~12 new mobsːzsk_swordː New attack types, such as ch-ch-chain lightning!ːzsk_winː Ability to have all friends at once (finally, amirite?)It will be ready someday in September

Posts come from Steam's official announcements feed.

Looking for something to play next? See the best idle games on Steam, ranked by real player counts.

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