Developer: Updog Software
At a glance
Released on January 1, 2026 by Updog Software. It is free to play.
Description
Summon an army of monster girls and face the Dark Lord's minions in strategic battles to expand your bestiary!

The Dark Lord has appeared on a mysterious island with his followers, spreading a corruption that taints and inhibits all magic in the world.
With his expanding influence, it's up to you, one of the few capable summoners, to defeat his minions and stop his plans before he spreads his evil magic.
Codex Arcana: Grimoire of Monsters is a strategy game inspired by "Capsule Monsters" games, where you collect and battle Monster Girls, all with a variety of looks and skills.

Meet a roster of unique opponents, each with a different personality and set of monsters you can collect!
Battle through many different maps - each map will test your strategy in different ways!
Customize your army on each battle! Do you want to overwhelm your opponent with strength, or would you rather have an army of only the cutest monster girls? It's up to you how you build your units!

With a selection of over 100 distinct monster girls, there are many awesome units to find!
Expand your collection by taking units from opponents, buying in the shop, or maybe even evolving them to more powerful monsters!
Can you find and add all monster girls to your grimoire? See if you have what it takes to become the ultimate summoner!
Become the ultimate magus, expand your collection and defeat the Dark Lord in fierce strategic battles! Enter the world of Codex Arcana and complete your grimoire!
Supported languages: english, japanese, portuguese - brazil
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Description and screenshots are provided by the publisher via the Steam Store page.
System Requirements
Windows
- OS: Windows 10
- Processor: Intel Core 2 Duo E8200 or AMD FX-4100
- Memory: 4 GB RAM
- Graphics: Integrated graphics with full Vulkan 1.0 or Direct3D 12 support
- DirectX: Version 12
- Storage: 1 GB available space
- Sound Card: Any sound card
- Additional Notes: The game runs on a toaster, if you can run windows 10 then it should be fine.
Linux
- OS: Linux distribution released after 2018
- Processor: Intel Core 2 Duo E8200 or AMD FX-4100
- Memory: 4 GB RAM
- Graphics: Integrated graphics with full Vulkan 1.0 support
- Storage: 1 GB available space
- Sound Card: Any sound card
- Additional Notes: Runs pretty well on stock Steam Deck model.
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Additional Information
| Developer | Updog Software |
| Platforms | Windows, Linux |
| Age rating | None |
| Release date | January 1, 2026 |