Monsters Idle RPG

Idle creature-collecting RPG with automated battles and resource management

Overaction Game Studio · Released Sep 19, 2023

Adventure Casual Indie RPG Simulation Strategy

Reviews: Mixed; 62% of 65
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 2 years ago; Dec 1, 2023
Minimum PC: DirectX 9 GPU; 2 GB RAM · 1 GB disk; Full requirements

What is Monsters Idle RPG?

This single-player idle RPG is set in Arcadius, a world of mythical creatures. You send a team into automated battles across different biomes, capture more monsters, craft items, and buy upgrades to strengthen your creatures.

For you if...

+you enjoy incremental progress and managing a growing collection

Not for you if...

−you want active combat with direct control over attacks
−you prefer minimal crafting and inventory management

What players say

62% of 65 reviews are positive

Players praise the monster-collecting concept and idle progression. Common complaints concern bugs, a clunky interface, and unclear crafting requirements, with later reports of blocked collection progress and an unobtainable achievement. The latest reviewer also criticizes the lack of offline progress and limited depth.

Screenshots and trailer

Monsters Idle RPG system requirements

Minimum: DirectX 9 GPU, 2 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Monsters Idle RPG?

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Minimum

OS: Windows XP/Vista/7/8/10/11
Processor: 1.6 GHz Dual Core or faster
Graphics: Graphics card supporting DirectX 9.0
Memory: 2 GB RAM
Storage: 1 GB available space
DirectX: Version 9.0
Notes: Even slower systems run the game.

Does Monsters Idle RPG have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Monsters Idle RPG run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some text entry requires manually opening the on-screen keyboard
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS, Linux
Achievements: 20
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English.

Does Monsters Idle RPG use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam