Steam Playtests
Primordaeon

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Primordaeon playtest

by Philocypher

Tower Defense

Anyone with a Steam account can join, and it's free.

Access
Instant
On playtest since
Nov 6, 2026
Planned release
Coming soon
Developer
Philocypher
Platforms
Windows, Linux
Players
Single-player
Languages
English

How to join the Primordaeon playtest

  1. Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
  2. Use the Primordaeon playtest signup there. You're in straight away, with nothing to pay.
  3. The playtest shows up in your Steam library, ready to install and play.

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About Primordaeon

Defend against a horde of millions of creatures.

Merge wisps together and place them strategically.

From the game's Steam page.