Reactor 2: Nuclear Tycoon

RSGapps - Idle Tycoon Games

Contains adsIn-app purchases

About this game

The nuclear idle tycoon simulator is back — and it's free.

Build your own power company from the ground up. Manage heat, optimize production, and grow a massive energy empire. In Reactor 2, you don't just construct power plants — you power an entire evolving city.

Master the system, discover your best strategy, and scale your profits to become a true industrial billionaire.

⚡ BUILD, POWER, AND EXPAND
Start small with basic wind turbines and grow into a high-efficiency nuclear power network.
Your mission is simple — supply energy to the city. Your challenge? Control the heat.
• Produce heat with diverse power sources
• Convert heat into electricity for the city
• Cool your systems to avoid production shutdowns
Balance everything perfectly to achieve maximum efficiency.

😌 RELAXED STRATEGY, NO PUNISHMENT
Reactor 2 is an idle clicker game built for thinkers, not masochists.
Your reactors never explode or reset your progress — they simply pause and cool down. This creates a no-loss, strategy-first experience where you experiment, optimize, and build at your own pace.

🔬 RESEARCH THE FUTURE
Unlock dozens of technologies and push your power empire forward.
• Renewables: Solar, Wind, Hydro, Tidal
• Advanced Tech: Nuclear, Fusion, Arc Reactors
• Sci-Fi Tier: Antimatter, Black Hole Reactors, HyperSpace Core
Every upgrade deepens your strategy and multiplies your profits.

💡 WHY YOU'LL LOVE REACTOR 2
• Idle gameplay — earn offline, even when the app is closed
• Deep resource management, no internet required
• Expand your power grid across unique islands
• Complete quests, chapters, and story-driven challenges
• Free to play — download and start building today

🚀 NEW IN THE SEQUEL
• A living city that grows with your energy output
• Advanced quest system with chapters and rewards
• Crafted by an indie team — refined pixel art and smoother performance

Reactor 2 is the ultimate offline idle simulation game — nuclear strategy, construction management, and tycoon gameplay in one free pixelated package.
Build smarter. Optimize harder. Watch your empire grow.
Download Reactor 2 free — your nuclear tycoon journey starts today.

https://rsgapps.com/
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Ratings and reviews

Game has never forced a single ad after over a week of play without the ad free upgrade. The pace is very nice, with enough ways to speed things up w/o spending a lot. Game layout is fantastic and intuitive. I like the time estimate it gives you until you get enough money/research points the upgrades, which helps me plan what to level up. I play a few minutes at a time here and there throughout the day, which I find nice. No pushy events or ads. The ad free upgrade is worth it, it speeds it up.

I was really starting to enjoy this as I settled into the few-times-per-day pattern, but a new update was just released that ended up wiping most of my generators and gas plants, reverting my progress by several days, and now the squares on my islands keep eating my money when I try to build and don't actually build anything. What the heck happened? Edit: very quick work from the dev to fix the problem, and the game really is enjoyable, so bumping this to 4 stars.

This is by far the best monetarily manager game I've seen for mobile as you don't need to buy anything and the ads are for your benefit and limited. Better yet, if you do want to buy something the prices aren't ludicrous like other games, 2 dollars for a bonus pack is nothing. The game is what idle games should have been and honestly I'm happy with it. The only thing that could be called a con is the wait time for upgrades and obstacle clearing as it ramps up fast in cost and time.

What’s new

• Stability improvements
• The big leap arrives September 30! Visit the Time Travel Lab, explore game-changing anomalies, and discover permanent upgrades in the Time Lab. Get your empire ready for a new era!
• Start preparing today! Energy produced online and offline already counts toward your first time jump. Power up your production — the future starts now!