# Ouroboros: Infinity puzzle — Relaxing brain training game > Connect block pieces to form loops in a challenging brain training puzzle game. (iPhone/iPad app by OA+ LLC.) - Source: https://appshunter.io/ios/app/ouroboros-infinity-puzzle/id1153775037 (this page in markdown: same URL + `.md`) - Developer: [OA+ LLC](https://appshunter.io/developer/1153775036) - Category: Games, Family, Puzzle, Entertainment - Price: Free - Rating: 4.90/5 from 10 App Store ratings · 13 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 111 MB - Languages: American English, Catalan, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish - Released: 2016-09-23 - Data updated: 2026-06-24 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/ouroboros-infinity-puzzle/id1153775037/reviews.md ## What is Ouroboros? Inspired by classic puzzle and brain training games such as pipes, Ouroboros is a unique brain training game that will challenge you to connect various block pieces to form as many loops as possible before filling up the board. Ouroboros is also the name of the mythical snake, symbol of eternal renewal. This ancient creature inspired our fun, addictive puzzle game that will constantly challenge you to think differently and create anew from destruction. Are you ready to take on the Ouroboros challenge? Download OUROBOROS now and play the game for free! ◆◆◆◆◆◆◆◆◆◆ How to play OUROBOROS: ► Place & connect blocks on the board. ► Create & complete loops. ► Earn points and progress as far as you can. Beware! As you progress further, limited space, randomly-placed tiles, and various obstacles will present new challenges to solve. ◆◆◆◆◆◆◆◆◆◆ What you’ll love in OUROBOROS: ◆ FREE to play! Start right now! Download the game and play it for free. The game is supported by ads. ◆ OFFLINE play Play anywhere, on the go, even if you don’t have an internet or WIFI connection available. ◆ EASY to learn! Place blocks & connect them. Create loops & Earn points ◆ ENDLESS ways to challenge your brain The challenge is endless. As long as you manage to clear enough space on the board, you’ll be able to progress. ◆ CREATE the biggest loops Be creative and find ways to connect the largest loops possible. ◆ RELAX and play at your own pace Pick it up anytime. Stop whenever you want. The game is a perfect time killer for those small breaks. ◆ INVITE your friends to play and challenge them to beat your score Compare how you are doing against your friends on the global leaderboard. ◆ BEAUTIFUL themes to unlock As you progress, you’ll unlock new backgrounds to customize the look and feel of the game. ◆◆◆◆◆◆◆◆◆◆ Any questions or comments? We’d love to hear from you. Contact us at: contact@oaplus.co Want to learn more about the game? Please visit: Website: https://www.oaplus.co Privacy: https://www.oaplus.co/privacy Follow us on social media: Facebook: https://www.facebook.com/oaplus.co/ Twitter: @oaplusstudio Big THANKS to all of you who are showing interest in our game. Download OUROBOROS now for free and challenge your brain to think anew. See you soon in the game! ## Key features - Connect block pieces - Form and complete loops - Offline play - Unlockable themes - Global leaderboard - Relaxing gameplay ## Recent user reviews (10 of 13) All indexed reviews: https://appshunter.io/ios/app/ouroboros-infinity-puzzle/id1153775037/reviews.md ### 2/5 — It’s fun, but… *2025-10-16* Seems like there are too many ads. To see the instructions, you have to watch an ad for each page. Each page has ~ one sentence and a diagram. There are 4 pages of instructions, so that’s 4 ads you have to watch just to get the instructions. ### 5/5 — A Happy Surprise About Ads! *2023-06-03* This game is simple and fun, but it’s not mindless — you need to think to plan the best place to put each tile. If you only have a couple minutes to squeeze in some game play, Ouroboros is perfect, as you can stop at any point, and then start playing later from where you left off. Most review comments about ads in other games are to complain that there are too many ads, (which is true with a lot of games). But that doesn’t apply to this game. After you’ve played for a while and advance in the game, you’ll be earning more points, which means you’ll see fewer and less frequent ads. I think that is wonderful! But that’s not the best part for me. The HAPPY SURPRISE is that when you have watched an ad and click on the “x” to close it, THE AD CLOSES RIGHT AWAY!!! One click! I get so aggravated with ads in other games that require you to click “x” or “DONE” repeatedly, as the ad switches from one page to another and back again repeatedly until you finally get it to close. Sometimes it takes 8-10 clicks or even more — and some ads I’ve seen recently last more than 30 seconds! I hate that! But with Ouroboros, the ads don’t argue with you about closing — when it is time for them to close, one click and they close. I assume the game developers set it up this way — which I very much appreciate. I find the ads that won’t close to be disrespectful — like they think that making me have to spend more time with the ad while trying to close it is going to somehow make me decide to download the game. ### 5/5 — Simple but challenging game. *2021-01-02* Love that you’re not bombarded with ads after every single move. Found this game by accident and it’s currently one of my favorites. ### 5/5 — Awesome puzzle game *2020-03-31* Simple and addictive puzzle Great as a little brain teaser Free and can be played offline Fun to pass the time ### 5/5 — Game to go for *2016-10-27* Not a game person. However, this game is very simple but challenging enough to get me wanna back for more and pushing for a personal best. ### 5/5 — Brilliant *2016-10-04* It's unique gameplay and makes you learn and play better every time you try. ### 5/5 — I love this game! *2016-09-30* It's simple and yet complex in itself. Once you get your hand on it, it's hard to put it down. Love it! ### 5/5 — Great fun, simple puzzle *2016-09-27* Great game with super simple idea that gets really fun and challenging! ### 3/5 — Like this game but need more fix. *2016-09-25, version 1.0* The last didn't give a solved loop but lose. Some block path 'popped up' in the higher level didn't solve the loop even it was fluky popped on the right place. That loop was stuck and had to wreck the popped up block and replace 'the same look' block. ### 5/5 — Smart & fun *2016-09-24, version 1.0* Great and original puzzle game. Nice to benefit from a free game made by professionals without aggressive ads! ## Frequently asked questions about Ouroboros ### What is Ouroboros? Ouroboros is a relaxing brain training puzzle game where players connect block pieces to form loops. It's inspired by classic puzzle games and offers an endless challenge to test your logic and creativity. ### Can I play Ouroboros offline? Yes, Ouroboros supports offline play. You can enjoy the game anywhere, even without an internet or Wi-Fi connection. ### How do I play Ouroboros? To play Ouroboros, you place and connect block pieces on the board to create and complete loops. Earn points as you progress, with increasing challenges like limited space and random tiles. ### Does Ouroboros have ads? Yes, Ouroboros is supported by ads. You can download and play the game for free, with advertisements included. ### What devices can I play Ouroboros on? Ouroboros is available on iPhone, iPad, and iPod. It is designed for iOS devices. ### How often is Ouroboros updated? The latest version of Ouroboros is 1.4.2, last updated on October 7, 2025. Updates typically include new features, bug fixes, and performance improvements. ### What is the age rating for Ouroboros? Ouroboros has an age rating of 4+. This indicates it is suitable for children aged 4 and above. ### Can I compete with friends in Ouroboros? Yes, you can invite your friends to play Ouroboros and challenge them to beat your score. The game features a global leaderboard for comparison. ## Version history (last 5 releases) ### 1.4.2 — 2025-10-07 - Bug fixes - Performance improvements ### 1.4.1 — 2025-09-20 - Minor bug fixes and updates ### 1.3.6 — 2024-05-16 - Minor bug fixes and updates ### 1.3.3 — 2021-09-08 - Multiple bug fixes and updates ### 1.3.2 — 2021-07-05 - Multiple bug fixes and updates ## Apps similar to Ouroboros | App | Rating | Price | Category | | --- | --- | --- | --- | | [The Unic - match patterns](https://appshunter.io/ios/app/the-unic-match-patterns/id1436830923) | 4.3 (41) | Free | Games | | [Chess Mega Bundle](https://appshunter.io/ios/app/chess-mega-bundle/id1528161084) | 4.7 (107) | Free | Games | | [Overpaint](https://appshunter.io/ios/app/overpaint/id888697127) | 3.9 (124) | Free | Games | | [Cubinko](https://appshunter.io/ios/app/cubinko/id1471588600) | 3.9 (20) | Free | Games | | [CubeQuest - a QB Game](https://appshunter.io/ios/app/cubequest-a-qb-game/id6450589405) | 4.8 (111) | Free | Games | | [Voro: 100% unique puzzle](https://appshunter.io/ios/app/voro-100-unique-puzzle/id6473058414) | 4.7 (337) | Free | Games | --- *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 2026-06-24.*