Crystal Guardians TD

Roguelike tower defense on an expanding, procedurally generated battlefield

Green Pine Studios · Released Mar 15, 2024 · Early Access

Early Access, no updates for over a year

Reviews: Very Positive; 90% of 119
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 1 year ago; Oct 15, 2025
Minimum PC: GTX 670; 8 GB RAM · 0.6 GB disk; Full requirements

What is Crystal Guardians TD?

In this isometric tower defense game, you defend a base crystal over repeated runs. You position towers, combine them with crystals, and equip them with items to fight enemy waves and bosses.

For you if...

+you enjoy unlocking lasting upgrades across repeated runs

Not for you if...

−you want cooperative or competitive multiplayer

What players say

90% of 119 reviews are positive

Players praise the variety of tower builds and item combinations. Recent complaints focus on infrequent main-branch updates and poor communication, with some players also reporting bugs and late-wave lag.

Screenshots and trailer

Crystal Guardians TD system requirements

Minimum: GTX 670, 8 GB RAM, 0.6 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7+
Processor: Quad Core I5 or AMD equivalent
Graphics: GTX 670 or AMD equivalent
Memory: 8 GB RAM
Storage: 600 MB available space

Does Crystal Guardians TD have co-op or multiplayer?

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

Single-player

Does Crystal Guardians TD run on Steam Deck?

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

Default controller config not fully functional
Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
The native resolution is not the default one
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 35
Steam features: Family Sharing
Languages: Text only: English.

Does Crystal Guardians TD 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