What are the pros of Idle Slayer?

Unique blend of 2D side-scrolling platformer mechanics with incremental progression.. Highly addictive gameplay loop that can keep players engaged for hundreds of hours.. Extensive skill tree and upgrade system providing a long-term sense of achievement.. Satisfying sense of momentum and speed as players unlock movement upgrades..

What are the cons of Idle Slayer?

Misleading title as the game requires significant active play to progress, leading players to call it 'Active Slayer'.. Progression hits extreme 'walls' in the mid-to-late game that feel uninteresting and grindy.. Heavy reliance on RNG and getting perfect pairs of random rewards from boxes to advance.. Controversial developer interactions and recent updates have negatively impacted the player experience.. Hidden autoclicker detection can penalize players in a genre where such tools are common..

Idle Slayer

Start from nothing and grow into a legendary Slayer. Explore countless dimensions, collect souls, unlock powerful upgrades, craft powerful gear, defeat epic bosses, and enjoy a deep idle RPG with active and offline progression.

84%

Very Positive

DeveloperPablo Leban

PublisherPablo Leban

Release DateDec 21, 2020

Free to Play

Peak Players2.0K

PlatformsWindows · macOS · Linux

AI Review Summary

Idle Slayer is a hybrid infinite runner and incremental RPG that offers a satisfying early-game progression and a unique 2D platforming aesthetic. However, many players find the 'idle' label misleading, as significant progress requires intensive active play and eventually hits steep walls that rely heavily on RNG.

Pros

Unique blend of 2D side-scrolling platformer mechanics with incremental progression.90%
Highly addictive gameplay loop that can keep players engaged for hundreds of hours.85%
Extensive skill tree and upgrade system providing a long-term sense of achievement.80%
Satisfying sense of momentum and speed as players unlock movement upgrades.70%

Cons

Misleading title as the game requires significant active play to progress, leading players to call it 'Active Slayer'.95%
Progression hits extreme 'walls' in the mid-to-late game that feel uninteresting and grindy.85%
Heavy reliance on RNG and getting perfect pairs of random rewards from boxes to advance.75%
Controversial developer interactions and recent updates have negatively impacted the player experience.70%
Hidden autoclicker detection can penalize players in a genre where such tools are common.60%

Notable Mentions

The game gained significant traction through influencers like DangerouslyFunny.
The 7.0.0 update introduced technical issues that prevented some long-time players from accessing the game.
While free-to-play, the microtransactions are generally described as unintrusive.

Confidence: 91%

Based on the 203 most relevant reviewsGenerated on Oct 25, 2026

Game Vitals

Live snapshot

Player Activity

Current peak

1.6K

Peak · last 90 days

1.7K

All-time peak

2.0K

Price

Current price

Free to Play

Lowest tracked

Free to Playsince Jun 7, 2026

Review Sentiment

Last 30 days

81%

All-time positive

84%

Review Statistics

Total Reviews11.0K

Positive: 9.3K (84%)Negative: 1.7K (16%)

Reviews from Steam Deck

Dev Response Rate

341h

Avg Playtime at Review

79%

Credible Reviews