# Reactor: Particle Match Puzzle — N-Back Memory Training Game > Fast-paced particle matching game to generate energy and improve cognitive skills. (iPhone/iPad app by David Furman.) - Source: https://appshunter.io/ios/app/reactor-particle-match-puzzle/id718356968 (this page in markdown: same URL + `.md`) - Developer: [David Furman](https://appshunter.io/developer/718356971) - Category: Games, Casual, Puzzle - Price: Free with in-app purchases - Rating: 3.88/5 from 8 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 15 MB - Languages: American English - Released: 2014-01-19 - Data updated: 2026-10-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/reactor-particle-match-puzzle/id718356968/reviews.md ## What is Reactor? Ice is closing in on Cryton38, and the reactor is all that keeps it going. Particles stream down the tube toward the reaction chamber. Tap the one that matches the particle at the bottom, and keep the power coming. HOW IT PLAYS • A match is a good reaction. A mismatch spills sludge into the reactor. • Good reactions in a row build heat, and heat makes power. The hotter the reactor runs, the more each reaction makes. • Heat frosts the tube and hides the particles on their way down. Remember what's coming. • When the sludge reaches the top, the reactor catches fire. Put it out with credits, or let the shift end. • Unlock rare and exotic particles for even more power. MISSIONS AND THE LAB • Work through missions in classes. Finish most of one class to open the next. • Discover elements by how you play (particles hidden, particles combined, the sludge level), then combine them in the Utility Lab: the Particle Peeper, the Sludge Siphon, Kepler's Coolant, the Containment Field and more. • Every 80 KW you produce earns a credit. Spend credits on extinguishers, utilities and mission skips. MELTDOWN MODE Heat climbs with every good reaction and never cools. Choose how many particles it may hide, from 3 to 6 or no limit, and see how much power you can make before the reactor gives out. Each run uses a fusion cell, and the cells recharge over time. ALSO • Reactor first came out on the iPhone in 2013. This is the same game, rebuilt for today's iPhones and iPads. • No ads, no accounts, no purchases. • Nothing is collected. Your progress stays on your device. • Plays offline. ## Key features - Deceptively simple and addictive gameplay - Two fun game modes - Increasing challenges and rewards - Score multiplier mechanics - Unlockable particles and discoverable elements - Over 60 challenging missions - Leaderboards and achievements ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 150 Credits | $0.99 | one-time | | 1,500 Credits | $4.99 | one-time | | 4,500 Credits | $9.99 | one-time | | 15,000 Credits | $19.99 | one-time | | Sludge Siphon - 5 Pack | $0.99 | one-time | | Containment Field - 3 Pack | $0.99 | one-time | | Exponential Reactant - 2 Pack | $0.99 | one-time | | Super Sludge Away | $0.99 | one-time | | Particle Peeper - 2 Pack | $0.99 | one-time | | Kepler's Coolant | $0.99 | one-time | ## Is Reactor safe? Not enough ratings yet to assess Reactor. ## Is Reactor legit? Reactor: Particle Match Puzzle appears to be a legitimate app. The AppsHunter Legitimacy Score for Reactor is 83 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/reactor-particle-match-puzzle/id718356968/reviews.md ### 1/5 — Won't work *2015-11-09* I hate these Game Center games. They do not work unless you sign in and they won't let me sign in. They either say the nickname is already in use or it freezes. So it doesn't matter how great this game is, it is useless. Deleted this piece of junk ### 3/5 — Good idea, poor execution *2015-03-22* Confusing and ugly UI. I can't make sense of any of the numbers, powerups, jargon, etc. Hard to recover when you miss just 1. Tip to developer: simplify. Think Apple design ### 5/5 — Nice *2014-09-12* Quite the mental challenge. Fun gameplay and easy to pick up. ### 5/5 — Fun Brain Trainer That Actually Works *2014-08-25* For those not familiar with N-Back, it is the only brain training game type thus far to show any signs of actually improving fluid intelligence. And this is actually a fun game too! If you're curious about why N-Back training is so promising. Check out some articles or books on working memory (beware this is not the exact same thing as short term memory, many articles or even textbooks fail to make this distinction). Only working memory training has so far show transference to other mind-intensive skills, unlike most other brain training games and systems out there (even professional looking systems like Luminosity). This is also the first game I've seen that also makes N-Back training actually FUN! It's got unlockables, and is very well done. Sure it's not going to be the most enthralling game you ever play. But I'd say it's not too far off from games like threes or candy crush. One last note is the in-app purchases are not bad at all. I'm opposed to in-app purchase games in general, but you don't need them in this game; if you're failing, you should be starting over for best training anyways. The only reason I see to get them is to support the developer for making such a fun and useful app. ### 4/5 — Fun nback *2014-07-04* Usually nback is annoying. This is fun. I'd buy but in app purchases don't make sense to me in this game. ### 5/5 — Challenging Game *2014-03-07* I've played this game for a few days now. It is defiantly very challenging and puts your memory to work. I recommend this game to anyone who wants to boost their intelligence and have fun doing it. ### 5/5 — Great! *2014-02-06* First new game in awhile I found challenging and addicting. Worthwhile download. ### 5/5 — Worth 5 stars!! *2014-02-03* I wasn't sure what I was getting myself into before I downloaded this game! It defiantly has improved my memory while holding a Devine addiction! You will not be disappointed! ### 5/5 — AMAZING GAME! *2014-01-20* GREAT GAME! Love it and great quality!! Defiantly an improvement to the apple store!! ### 5/5 — Great Game! *2014-01-19* The missions are unique, as well as the gameplay. Can't wait to see what particle I'll unlock next! ## Frequently asked questions about Reactor ### What is Reactor's gameplay like? Reactor features fast-paced particle matching gameplay where players must correctly match particles to generate energy and avoid destroying the reactor. The game includes two different modes and constantly increasing challenges. ### Does Reactor have ads? No, Reactor does not contain advertisements. It is a free game with optional in-app purchases. ### What are the benefits of playing Reactor? Reactor is based on N-Back theory, which studies suggest can increase a player's memory and IQ over time. It aims to push and expand mental abilities through its unique gameplay. ### How many missions are in Reactor? Reactor features over 60 challenging missions for players to complete. These missions are designed to test and improve cognitive skills. ### Can I compete with friends in Reactor? Yes, Reactor supports leaderboards and achievements, allowing you to compete with your friends. There are several different leaderboards available for various aspects of the game. ### What devices is Reactor available on? Reactor is available on iPhone, iPad, and iPod. It supports iOS 7 leaderboards and achievements. ### When was Reactor last updated? The latest version of Reactor, 1.3.2, was last updated on August 14, 2014. The game was initially released on January 19, 2014. ### What is the age rating for Reactor? Reactor has an age rating of 4+. This indicates it is suitable for children aged 4 and above. ## Version history (last 5 releases) ### 2.0.0 — 2026-10-23 Reactor is back, rebuilt from the ground up for today's iPhones and iPads. • The same game: Classic shifts, missions, the Utility Lab and Meltdown mode. • Credits are earned by playing, one for every 80 KW, and pay for everything. Nothing is sold. • Share a score or a mission from the end screen. • Plays offline, with no ads and no accounts. Progress from the 2013 version doesn't carry over: everyone starts a fresh reactor. ### 1.3.2 — 2014-08-14 Improved stability on iOS 7 Thanks for your support! Keep playing and improving your memory. :) ### 1.3.1 — 2014-05-30 Fixed an issue with textures being lost on the iPhone 5 Various bug fixes and stability improvements. ### 1.3.0 — 2014-05-21 Brand new game mode! In Meltdown mode, there are no utilities, no extinguishers and no second chances. Make any mistakes and reactor is destroyed. Meltdown mode has its own leaderboards so you can challenge your friends at any of 5 different skill levels. Try it out and share your high scores with your friends today! Other changes in this release: The heat frost moves up more naturally Tap to skip particle drop User interface improvements Graphics improvements Performance improvements Many misc. bug fixes ### 1.2.1 — 2014-03-22 Fixed an issue that caused random game crashes in iOS 7.1 The option has been removed to start a new game or continue your shift. Instead if a game is in progress, you will be loaded directly into the pause screen. Various bug fixes and improvements. A brand new game mode will be coming an an update soon! Stay tuned. ## More apps by David Furman - [Presentation Ender](https://appshunter.io/ios/app/presentation-ender/id946521000) All apps by David Furman: https://appshunter.io/developer/718356971 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*