A group of ordinary friends with each there own personality going into depths of Sapphire dungeon.
Each expecting something slightly different...


Collect weapons, armour and gold that helps you defeat your enemies

Deck build

Customize your character by deck building


Explore randomly generated map with its rewards and challenges


Unique non-linear player interaction gives freedom of choice

Latest News

Monthly blog and important events

New map generation – Devblog # 2

First to clarify how it worked before, you would draw generation cards that have 3×3 size grid with card locations. 5 cards are always placed in the + symbol at[…]

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Starting work on computer version – Devblog #1

This month i started work on computer version. I’m using unreal engine 4 as platform as i’m most familiar to my, i using UE4 in my day job so it[…]

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Website is live and beta sign up is open

After some time making Sapphire dungeon privately, we believe it’s time to start showing the game publicly and get some feedback. Right now pre-alpha of physical version is almost ready[…]

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Sign up for beta

Beta access
date is not determined yet

We will let you know when the beta starts. Some might even get physical board game to test



Our Team

Jan Mrázek

Game designer

Radek Mrázek (Arbolus)

Graphic Artist

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