Familiars.io

Online monster-catching RPG with fast leveling and optional player battles

Clay Loam · Released Jan 19, 2024

Reviews: Very Positive; 91% of 86
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Unsupported
Last update on Steam: 2 years ago; Dec 6, 2023
Minimum PC: 2 GB RAM · 0 GB disk; Full requirements

What is Familiars.io?

This free-to-play RPG takes place in a shared online world with 20 creatures to catch and train through turn-based combat. Creatures reach a maximum level of 15, and hidden portals lead to sequences of computer-controlled battles where you manage health and a limited potion supply.

For you if...

+you prefer short play sessions over lengthy RPG grinds
+you enjoy optional challenges built around careful resource management

Not for you if...

−you want a lengthy monster-catching campaign
−you expect text chat when meeting other players

What players say

91% of 86 reviews are positive

Players praise the creature designs and easy-to-learn combat. Negative reviewers report too few active players for reliable PvP.

Screenshots and trailer

Familiars.io system requirements

Minimum: 2 GB RAM, 0 GB of disk space.

As published by the developer.

Can my PC run Familiars.io?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows 10+
Processor: 2GHz dual core
Memory: 2 GB RAM
Storage: 30 MB available space

Does Familiars.io have co-op or multiplayer?

Yes: PvP online; MMO. There is no single-player mode. Crossplay with other platforms is declared.

Does Familiars.io run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

Not supported on SteamOS

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Cloud saves, Family Sharing
Languages: Text only: English.

Does Familiars.io 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