Reactor 2: Idle Nuclear Tycoon1.1.10 - App Store
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Publisher Description
Build a power empire where every tile matters.
Reactor 2 expands the original idle tycoon with a living city, island progression, deeper quests, and new late-game technology. Start with a wind turbine, produce heat, turn it into electricity, and keep a growing city powered.
BUILD AND OPTIMIZE
Place reactors, generators, and heat sinks to create an efficient grid. Rearrange buildings as demand grows, solve bottlenecks, and balance output, cooling, space, and cost.
CONTROL THE HEAT
Heat drives your production chain. Convert it into electricity, cool overloaded systems, and keep the grid running. Overheated reactors pause and cool down instead of exploding, giving you room to experiment with better layouts.
GROW WHILE YOU ARE AWAY
Collect offline income, invest in research, and return to a city ready for its next expansion. Play in short sessions or spend time perfecting every part of your grid.
RESEARCH THE FUTURE
Advance from wind, solar, hydro, and tidal power to nuclear, fusion, antimatter, arc, and black hole reactors. Every tier introduces new strategic decisions-not only bigger numbers.
EXPLORE AND EXPAND
Restore power across unique islands, complete chapter-based quests, unlock buildings, and watch the city grow with your output.
WHY PLAY REACTOR 2?
. A hands-on heat-to-electricity simulation
. Idle progress supported by meaningful strategy
. Flexible building layouts and deep research
. A living city powered by your decisions
. No forced ad breaks during normal play
. Regular updates from a small indie team that listens to player feedback
. Refined pixel art from a small indie studio
Build the grid. Master the heat. Power the city.
Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://rsgapps.com/privacypolicy.htm
Version History - 2 new reactors: Precursor Pyramid and Ecto Compressor!
- 4 new chapters, a new cooler and more research levels.
- Expanded Time Lab upgrades with more levels and lower costs.
- 7 new achievements and a leaderboard for Chronons earned from Time Jumps.
- Research and building upgrade previews now include Time Lab bonuses.
- Power line nodes now indicate island overheating.
- Completed bonus task rewards are now collected automatically when claiming a chapter.
- Optimized for iPhone Duo.
- Improved build and speedup menus, plus interface and translation fixes. 1.1.10 1d ago • Rebalanced Time Lab research costs: buy many more upgrades after your first Time Jump!
• Time Jumps arrive September 30! Earn Chronons and unlock permanent upgrades.
• Swap buildings to rearrange your grid.
• Time Lab upgrades now use their final values. Preview the Chronon cost of each level.
• Confirm Coin purchases to avoid accidental spending. 1.1.04 Sep 29 • Time Jumps arrive September 30! Earn Chronons and unlock permanent upgrades.
• Swap buildings to rearrange your grid.
• Time Lab upgrades now use their final values. Preview the Chronon cost of each level.
• Confirm Coin purchases to avoid accidental spending. 1.1.01 Sep 28 • 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! 1.0.23 Sep 16 Added Romanian and Hungarian language support.
Generator research now displays Waste Heat Production.
Made purchase restoration and permanent VIP access more reliable. 1.0.20 Aug 24 - New Chapter 47 with new quests and rewards.
- Power Packs now stay in the Shop instead of rotating through timed campaigns.
- Added mouse-wheel zoom support when playing on Mac.
- Fixed buildings stopping their animations after being idle or overheated.
- Fixed the City Upgrade animation causing HUD glitches. 1.0.16 Aug 17 - Bug fix: some buildings were not visible on the map and were not functioning correctly.
- New late-game buildings: Flux Capacitor Reactor, Doomstar Reactor, Generator, and Heat Sink.
- New Research Levels.
- Improved overall game performance.
- Potato Mode is now significantly faster.
- Minor fixes and improvements. 1.0.15 Aug 13 • Fixed Energy Boom Weekend calculations to include City Tariffs bonuses correctly.
• Adjusted long-tap sensitivity on some devices to prevent Move mode from activating while moving the camera. 1.0.06 Jul 25 • Move buildings: Hold and drag a building to rearrange your city.
• New purchase – Rewards Without Ads: Claim optional ad rewards instantly. Daily limits still apply.
• Infinite Rush Hours owners can exchange remaining Rush Hours for a compensation reward of their choice.
• Cash and RP shop offers are now cheaper or give more value.
• Fixed Quick Cash sometimes granting less Cash than displayed.
• Minor fixes and improvements. 1.0.03 Jul 24 • Fixed an issue where the UI could sometimes get stuck on the welcome screen
• Fixed an issue where offline income could sometimes be 0 incorrectly
• Various fixes and improvements 1.0.2 Jul 18 Update highlights:
1.0.1
• Fixed a crash that could affect some players using VPN apps with phishing protection
• Various fixes and improvements 1.0.1 Jul 16 Update highlights:
1.0.0
• New Weekly Events where players vote for upcoming weekend boosts
• Added city name customization
• Added Promo Code system
• Added iPad landscape mode support
• Improved onboarding and tutorial flow
• Improved heat distribution system
• Improved notification settings
• Many visual fixes, translation improvements, and stability improvements 1.0.0 Jul 12 Update highlights:
0.9.46
• Added iPad landscape mode support
• Reactor 2 is now playable on iPad in landscape orientation
• Improved saving when closing the game
• Various fixes and improvements
Your latest actions should now be saved more reliably. 0.9.46 Jun 22 Update highlights (0.9.44):
• New heat distribution system
• Improved onboarding and tutorial flow
• Tutorial is now less intrusive and easier to follow
• Various fixes and improvements
The new heat distribution system should make heat flow more naturally across your layouts and improve larger setups.
Getting started should now feel smoother for new players.
Please let us know how the new heat distribution system feels. 0.9.44 Jun 17 Update highlights (0.9.43):
• New heat distribution system
• Improved onboarding and tutorial flow
• Tutorial is now less intrusive and easier to follow
• Various fixes and improvements
The new heat distribution system should make heat flow more naturally across your layouts and improve larger setups.
Getting started should now feel smoother for new players.
Please let us know how the new heat distribution system feels. 0.9.43 Jun 16 Update highlights:
0.9.39
• Faster game loading
• New heat distribution system
• New research: Reduce Obstacle Removal Time
• Fixed obstacles not being removed while offline
• Fixed Rush Hours with incorrect 1M Coins cost
• Various fixes and improvements
This update improves performance, heat management, and map progression. The new heat distribution system should make heat flow more natural across your setups, while the new research helps you clear obstacles faster.
Let us know how the new heat distribution system feels. 0.9.39 Jun 8 0.9.35 May 25
About Reactor 2: Idle Nuclear Tycoon
The company that develops Reactor 2: Idle Nuclear Tycoon is Robert Grzybek. The latest version released by its developer is 1.1.10.
To install Reactor 2: Idle Nuclear Tycoon on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Reactor 2: Idle Nuclear Tycoon as malware if the download link is broken.
How to install Reactor 2: Idle Nuclear Tycoon on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Reactor 2: Idle Nuclear Tycoon is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Reactor 2: Idle Nuclear Tycoon is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.1.10
posted on 2026-10-14
Version History - 2 new reactors: Precursor Pyramid and Ecto Compressor!
- 4 new chapters, a new cooler and more research levels.
- Expanded Time Lab upgrades with more levels and lower costs.
- 7 new achievements and a leaderboard for Chronons earned from Time Jumps.
- Research and building upgrade previews now include Time Lab bonuses.
- Power line nodes now indicate island overheating.
- Completed bonus task rewards are now collected automatically when claiming a chapter.
- Optimized for iPhone Duo.
- Improved build and speedup menus, plus interface and translation fixes. 1.1.10 1d ago • Rebalanced Time Lab research costs: buy many more upgrades after your first Time Jump!
• Time Jumps arrive September 30! Earn Chronons and unlock permanent upgrades.
• Swap buildings to rearrange your grid.
• Time Lab upgrades now use their final values. Preview the Chronon cost of each level.
• Confirm Coin purchases to avoid accidental spending. 1.1.04 Sep 29 • Time Jumps arrive September 30! Earn Chronons and unlock permanent upgrades.
• Swap buildings to rearrange your grid.
• Time Lab upgrades now use their final values. Preview the Chronon cost of each level.
• Confirm Coin purchases to avoid accidental spending. 1.1.01 Sep 28 • 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! 1.0.23 Sep 16 Added Romanian and Hungarian language support.
Generator research now displays Waste Heat Production.
Made purchase restoration and permanent VIP access more reliable. 1.0.20 Aug 24 - New Chapter 47 with new quests and rewards.
- Power Packs now stay in the Shop instead of rotating through timed campaigns.
- Added mouse-wheel zoom support when playing on Mac.
- Fixed buildings stopping their animations after being idle or overheated.
- Fixed the City Upgrade animation causing HUD glitches. 1.0.16 Aug 17 - Bug fix: some buildings were not visible on the map and were not functioning correctly.
- New late-game buildings: Flux Capacitor Reactor, Doomstar Reactor, Generator, and Heat Sink.
- New Research Levels.
- Improved overall game performance.
- Potato Mode is now significantly faster.
- Minor fixes and improvements. 1.0.15 Aug 13 • Fixed Energy Boom Weekend calculations to include City Tariffs bonuses correctly.
• Adjusted long-tap sensitivity on some devices to prevent Move mode from activating while moving the camera. 1.0.06 Jul 25 • Move buildings: Hold and drag a building to rearrange your city.
• New purchase – Rewards Without Ads: Claim optional ad rewards instantly. Daily limits still apply.
• Infinite Rush Hours owners can exchange remaining Rush Hours for a compensation reward of their choice.
• Cash and RP shop offers are now cheaper or give more value.
• Fixed Quick Cash sometimes granting less Cash than displayed.
• Minor fixes and improvements. 1.0.03 Jul 24 • Fixed an issue where the UI could sometimes get stuck on the welcome screen
• Fixed an issue where offline income could sometimes be 0 incorrectly
• Various fixes and improvements 1.0.2 Jul 18 Update highlights:
1.0.1
• Fixed a crash that could affect some players using VPN apps with phishing protection
• Various fixes and improvements 1.0.1 Jul 16 Update highlights:
1.0.0
• New Weekly Events where players vote for upcoming weekend boosts
• Added city name customization
• Added Promo Code system
• Added iPad landscape mode support
• Improved onboarding and tutorial flow
• Improved heat distribution system
• Improved notification settings
• Many visual fixes, translation improvements, and stability improvements 1.0.0 Jul 12 Update highlights:
0.9.46
• Added iPad landscape mode support
• Reactor 2 is now playable on iPad in landscape orientation
• Improved saving when closing the game
• Various fixes and improvements
Your latest actions should now be saved more reliably. 0.9.46 Jun 22 Update highlights (0.9.44):
• New heat distribution system
• Improved onboarding and tutorial flow
• Tutorial is now less intrusive and easier to follow
• Various fixes and improvements
The new heat distribution system should make heat flow more naturally across your layouts and improve larger setups.
Getting started should now feel smoother for new players.
Please let us know how the new heat distribution system feels. 0.9.44 Jun 17 Update highlights (0.9.43):
• New heat distribution system
• Improved onboarding and tutorial flow
• Tutorial is now less intrusive and easier to follow
• Various fixes and improvements
The new heat distribution system should make heat flow more naturally across your layouts and improve larger setups.
Getting started should now feel smoother for new players.
Please let us know how the new heat distribution system feels. 0.9.43 Jun 16 Update highlights:
0.9.39
• Faster game loading
• New heat distribution system
• New research: Reduce Obstacle Removal Time
• Fixed obstacles not being removed while offline
• Fixed Rush Hours with incorrect 1M Coins cost
• Various fixes and improvements
This update improves performance, heat management, and map progression. The new heat distribution system should make heat flow more natural across your setups, while the new research helps you clear obstacles faster.
Let us know how the new heat distribution system feels. 0.9.39 Jun 8 0.9.35 May 25
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