# Diagonal Duel > Rotated Connect Four strategy game with AI, local, and online multiplayer. (iPhone/iPad app by Brian Savidge.) - Source: https://appshunter.io/ios/app/diagonal-duel/id1532290974 (this page in markdown: same URL + `.md`) - Developer: [Brian Savidge](https://appshunter.io/developer/1532290976) - Category: Games - Price: Free - Rating: 4.75/5 from 20 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 21 MB - Languages: English - Released: 2020-09-18 - Data updated: 2026-06-04 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/diagonal-duel/id1532290974/reviews.md ## What is Diagonal Duel? Diagonal Duel against a level 0-100 computer, with two players on the same device, or in ranked online games! Diagonal Two Squared is a game similar to Connect Four but essentially with the board rotated at 45 degrees. This allows for play on two "sides" from the start instead of the original game, on which you only play only along the bottom. The app allows for two players to play on the same device, to select a level from 0 to 100 computer to play against, or to play against random opponents. ## Key features - 45-degree rotated board gameplay - Play against AI (levels 0-100) - Local two-player mode - Online ranked matches - Similar to Connect Four ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/diagonal-duel/id1532290974/reviews.md ### 1/5 — not worth your time *2022-02-22* initially i thought this game was pretty fun and easy to get the hang of… but then i quickly became bored. it could definitely use some programming updates, it’s truly not that engaging or difficult. ### 5/5 — Outstanding! *2020-10-19* How is this not the #1 app on the App Store? ### 5/5 — Response to Dan the Man *2020-10-15* Dan, your positive take on this crafty game pushed me over the edge to download. It’s people like you that make this crazy internet obsessed world we live in a little more sane :) ### 5/5 — LIFE CHANGING!!!! *2020-10-15* This is honestly the most premier game I’ve ever played in my 22 years of existence!! I found myself playing this game for 74 straight hours with out blinking an eye. This game is truly revolutionary and I just can’t get enough of this game. 2020 just got a whole lot better! ### 5/5 — Incredible App *2020-10-14* This is an incredible game that brings back the nostalgia of Connect 4 from my childhood. Great graphics and phenomenal execution of software. Would definitely recommend. Would give 6 stars if I could ### 5/5 — Fantastic Game *2020-09-28* Such an insightful take on the classic Four in a Row game. An impressive feat of groundbreaking innovation! Would highly recommend to anyone looking for a new game to play! ### 5/5 — Captivating *2020-09-24* This app is thought-provoking. Genius. Brilliant. The critics are raving. ## Frequently asked questions about Diagonal Duel ### What is Diagonal Duel? Diagonal Duel is a strategy board game that is a variation of Connect Four, played on a board rotated at a 45-degree angle. It offers AI, local, and online multiplayer modes. ### How do I play Diagonal Duel? The game involves dropping pieces onto the board to form a line of four of your color diagonally. The rotated board introduces unique strategic possibilities compared to traditional Connect Four. ### Can I play Diagonal Duel offline? Yes, Diagonal Duel can be played offline against a computer opponent with difficulty levels ranging from 0 to 100, or with another player on the same device. ### Does Diagonal Duel have online multiplayer? Yes, Diagonal Duel features ranked online games, allowing you to compete against random opponents. ### What devices does Diagonal Duel support? Diagonal Duel is available on iPhone, iPad, and iPod, as indicated by its supported devices. ### Is Diagonal Duel free to play? Yes, Diagonal Duel is free to download and play. It is supported by advertisements. ### How often is Diagonal Duel updated? The latest version, 3.0, was last updated on February 10, 2025, suggesting regular updates to the game. ### What is the age rating for Diagonal Duel? Diagonal Duel has an age rating of 4+, making it suitable for young players and families. ## Version history (last 5 releases) ### 3.0 — 2025-02-10 Now play in online games! If you'd like your "Computer Score" to be updated to what you had in the old version of the app, please reach out to our support team so we can manually input it for you. ### 2.9.1 — 2022-03-06 Updated iMessage display name and ad sets. ### 2.8 — 2022-02-06 Now play in classic mode or with default colors! ### 2.5 — 2021-11-16 Now with tap vibrations so you know when you've properly clicked a button! ### 2.4 — 2021-11-01 Ads have been removed between games! ## Apps similar to Diagonal Duel | App | Rating | Price | Category | | --- | --- | --- | --- | | [John’s Sudoku :)](https://appshunter.io/ios/app/johns-sudoku/id1268251178) | 5.0 (2) | Free | Games | | [Justin Turdeau](https://appshunter.io/ios/app/justin-turdeau/id1474503771) | 5.0 (1) | Free | Games | | [Quickies - Quick Games](https://appshunter.io/ios/app/quickies-quick-games/id1146259686) | 3.5 (13) | Free | Games | | [Wood Block Sorting](https://appshunter.io/ios/app/wood-block-sorting/id6740398907) | — | Free | Games | | [This is Normal](https://appshunter.io/ios/app/this-is-normal/id6478086123) | 4.2 (5) | Free | Games | | [Super Shuffleboard](https://appshunter.io/ios/app/super-shuffleboard/id1585158031) | 3.0 (2) | Free | Games | ## More apps by Brian Savidge - [Frame On!](https://appshunter.io/ios/app/frame-on/id1602931798) - [AFT Score Calculator](https://appshunter.io/ios/app/aft-score-calculator/id1619926227) - [Math Mad Minute](https://appshunter.io/ios/app/math-mad-minute/id6739588575) - [Algo Tracker](https://appshunter.io/ios/app/algo-tracker/id6741738597) All apps by Brian Savidge: https://appshunter.io/developer/1532290976 ## Related topics [diagonal duel](https://appshunter.io/ios/topics/diagonal-duel) · [diagonal](https://appshunter.io/ios/topics/diagonal) --- *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 2026-06-04.*