Hello everyone,  


For the past 7 months, I’ve been working on this project completely solo. During development, I conducted extensive playtesting with over 10,000 players across various WebGL platforms to refine the core gameplay.

# WHAT IS THE GAME

Unstable Nuclear Reactor is an incremental hex-puzzle roguelite game where you merge atoms into higher elements, trigger massive chain combos, earn radioactive coins, and manage your ring capacity to survive as long as possible.

# WHAT CHANGED

Based on tough feedback regarding harsh RNG and a lack of tutorials, I reworked the core experience by introducing:

1. Hold Slots: Store up to 5 atoms or tools to use when needed. If you need to clear space, you can discard an item by spending a few Radioactive Coins.
2. Equip / Unequip Tools: Gain full control over your loadout by toggling unlocked tools on or off during gameplay.

Additionally, I implemented better tutorials, improved the upgrade system UI, and fixed several bugs!

# WISHLIST & PLAY THE DEMO

I really need all kinds of feedback, as I’ll be entering Steam Next Fest with 500+ wishlists. Please give the demo a try and help me identify anything that could be improved or fixed.

[https://store.steampowered.com/app/4692090/Unstable\_Nuclear\_Reactor\_Demo/](https://store.steampowered.com/app/4692090/Unstable_Nuclear_Reactor_Demo/)

# WHY UNITY

I’ve been using Unity for almost 5 years, and I have to say, it’s still my favorite game engine, especially for 2D games. The interface is simple and easy to use, which helps me iterate quickly and make progress much faster.

Unstable Nuclear Reactor just got a HUGE update! Feedback needed!