FAS: Fight Action Sandbox

Turn-based 3D sandbox fighting with characters and moves you create

Vona Soft · Released Apr 19, 2023

Reviews: Mixed; 66% of 74
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 3 years ago; May 16, 2023
Minimum PC: 1050; 0 GB RAM · 0.5 GB disk; Full requirements

What is FAS: Fight Action Sandbox?

A turn-based 3D fighting sandbox where you build characters and battle AI opponents or friends online. You can edit abilities and particle effects, then save fights as replays with camera movements you control.

For you if...

+you enjoy experimenting with unconventional fighters and custom movesets
+you prefer planning moves over reacting in real time

Not for you if...

−you want real-time combat rather than turn-based duels

What players say

66% of 74 reviews are positive

Players praise the freedom to create unusual fighters and custom movesets. Complaints include technical problems and low online activity, with recent criticism also describing the game as abandoned.

Screenshots and trailer

FAS: Fight Action Sandbox system requirements

Minimum: 1050, 0 GB RAM, 0.5 GB of disk space.

As published by the developer.

Can my PC run FAS: Fight Action Sandbox?

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Minimum

OS: Windows 10 64bit only
Processor: 3 GHz
Graphics: NVIDIA Geforce 1050
Memory: 8 MB RAM
Storage: 512 MB available space

Does FAS: Fight Action Sandbox have co-op or multiplayer?

Yes: PvP online and LAN. It also has a single-player mode.

Does FAS: Fight Action Sandbox 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
Default configuration is not performant
The native resolution is not the default one
All functionality is accessible with the default controller configuration

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 20
Steam features: Workshop, Family Sharing
Languages: Text only: English.

Does FAS: Fight Action Sandbox 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