
Screenshots

Watch trailer on Steam ↗Miriam's Potion Journal
Reo, Tsuru · Published by ReoGames
Positive — 94% positive (16 reviews) · 30 achievements
Last updated 28 Sept 2026
Play as an apprentice alchemist in this logic puzzle game to craft the legendary 'Idea'. The runes hidden in ingredients change every playthrough, but potion recipes remain constant. Brew potions, analyze your successes and failures, deduce the hidden rune laws, and uncover unchanging recipes!
£7.99
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Indie, Casual · 2026 · More £5 - £15 games
About this game
■ Overview
Miriam's Potion Journal is a logical alchemy puzzle game where you play as an apprentice alchemist unraveling the hidden laws of ingredients. While fulfilling daily quests, you will toss materials into your cauldron and brew unknown potions. Your ultimate goal is to craft the legendary concoction known as "Idea." Use deduction and a spark of inspiration to discover new potion recipes and become a great alchemist!
■ Deep Crafting Puzzles and Deduction
Every ingredient contains hidden runes (tags). For example, a "Potion of Healing," which is related to "Life," can be brewed by combining ingredients that hold three specific runes: a "Life" core, a "Regeneration" branch, and a "Drop" catalyst. So, what combinations would create other life-related potions? Even mysterious ingredients with unknown effects will gradually reveal their properties as you experiment with brewing. However, every time you play, the combinations of tags hidden within the ingredients will change. Relying on your history of successes and failures, as well as your own notes, deduce the runes of the ingredients in that world and logically derive unknown recipes from the laws of the runes.
■ A Variety of Potions and the Legendary "Idea"
There are numerous recipes to discover, ranging from basic healing salves and high-tier potions that manipulate gravity, to legendary concoctions (Ideas) like the "Philosopher's Stone." Even if the laws of the ingredients change, the recipe structure (the combination of runes) leading to an "Idea" remains the same. Rely on your accumulated knowledge and logical thinking to deduce the correct combinations.
■ The Daily Life of an Apprentice Alchemist
Venture outside the town to gather materials or buy missing ingredients at the shop. Once you're prepared, it's finally time to brew some potions. If you successfully brew a potion requested by the townsfolk, you can deliver it to receive new ingredients and other rewards. Even if you fail, the merchant will gladly buy your failed creations at the shop. What they use them for is anyone's guess... Failure is an inherent part of alchemy. You might mass-produce failures at first, but as you unravel the rules, you'll be able to deduce new recipes and brew more and more unknown potions. Don't be afraid of failure—toss in various combinations of ingredients and keep stirring your cauldron!
■ Video Streaming Guidelines
Feel free to stream and monetize (Ads, Super Chats, etc.) "Miriam's Potion Journal" on any platform.
[Requirement] Please include the link to the Steam store page in your video description. There are no spoilers or other restrictions. Enjoy the game!
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: OS: Windows 10 (64-bit)
- Processor: Processor: Dual-core 2.0 GHz or better
- Memory: 4 GB RAM
- Graphics: Intel HD Graphics 4000 or DirectX 11 compatible card
- DirectX: Version 11
- Storage: 4 GB available space
- Sound Card: DirectX compatible sound card
- Additional Notes: Playable entirely with a mouse.
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
Patch NotesOfficial
Patch1.05
Fixed an issue where the crafting button sound effect would play overlappingly in the crafting notebook. Adjusted some Japanese text.Read full article on Community Announcements (reo)Patch NotesOfficial
Patch1.04
Balance Adjustments for Material AcquisitionRead full article on Community Announcements (reo)Patch NotesOfficial
Patch1.03
Minor system adjustments regarding Steam API integration.Read full article on Community Announcements (reo)Patch NotesOfficial
Patch1.02
Fixed an issue in the Japanese version where some hint items incorrectly displayed the flavor text of other items. (There are no changes to the English version.)Read full article on Community Announcements (reo)Patch NotesOfficial
Patch1.01
Fixed an issue that caused performance slowdowns during extended play sessions. Added text to clarify that information shown in dialogs can be reviewed later in the Hints. Other minor adjustments and improvements.Read full article on Community Announcements (reo)






