# Xero Hour — Retro Sci-Fi Action Adventure > Retro sci-fi action adventure game with pixelated graphics and chiptune music. (iPhone/iPad app by Bitwad Entertainment Ltd.) - Source: https://appshunter.io/ios/app/xero-hour/id1501884848 (this page in markdown: same URL + `.md`) - Developer: [Bitwad Entertainment Ltd](https://appshunter.io/developer/1481122054) - Category: Games, Action, Adventure - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 10 written reviews indexed - Age rating: 9+ - Requires: iOS 12.1 · 265 MB - Languages: English - Released: 2020-12-16 - Data updated: 2026-06-08 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/xero-hour/id1501884848/reviews.md ## What is Xero Hour? Dr. Xero finds himself stranded, pixelated, and in need of assistance! Tap as he runs to avoid enemies, find new paths, and collect items and new power ups to help escape this hostile alien world. Between areas you will find that Dr. Xero needs your help (well, the help of your finger) to charge his ION BOMBS and defend his position against waves of terrifyingly 8Bit enemies. Later on in the game you may be able to use what you've collected to rebuild Dr. Xero's ship - but will you find the shipyard, and will you have enough of the three different mineral types needed for ship-synthesis?? All of this is accompanied by amazing, and nostalgic, chiptune progressive metal songs!! ## Key features - Pixelated retro graphics - Chiptune progressive metal soundtrack - Tap-to-avoid gameplay - Item collection and power-ups - Ship rebuilding mechanics - Defend against enemy waves ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Ammo Reserve Tank | $1.99 | one-time | | Radar Triangulator | $1.99 | one-time | | Remove Ads | $1.99 | one-time | | Combo Deal | $4.99 | one-time | | 150 Pack of Minerals | $0.99 | one-time | | Jungles of Ancient K'rell DLC | $2.99 | one-time | ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/xero-hour/id1501884848/reviews.md ### 5/5 — Impressive work *2025-06-07, version 2.0.001* Highly recommend great work ### 5/5 — Supa Heat *2021-02-03, version 1.03.002* This game is actually crazy awesome! I can tell the developer put lots of effort into this😘 ### 1/5 — Lol *2021-01-08, version 1.03.002* This is literally a knock off of super Mario bros this game sucks ### 5/5 — Awesome *2020-12-29, version 1.01* Game is very addicting and well thought out, very fun to play. For sure recommend this game! ### 5/5 — Great game but.. *2020-12-23, version 1.01* The game feels original and a story being a part of it really adds to the experience. The only issue I have is the camera tracking when running around. Maybe it’s just me but it can be a little extreme to either side and when it comes back I get a little motion sick. This is definitely a 5 star game otherwise. Update: developer informed me that there’s a camera setting in the options to slow it down. Problem solved! ### 5/5 — Well done! *2020-12-20, version 1.01* Love the core mechanic and challenging, old-school difficulty of the game. Well designed and well worth buying the ad-free version in the app. ### 5/5 — A must play phone game *2020-12-20, version 1.01* This is a deadly side scroller, with multiple path options and the combat system is pretty awesome. The story is pretty cool and original as well. Can’t believe it’s free! ### 5/5 — Love it!! *2020-12-20, version 1.01* I absolutely love this game!! This is what I remember playing when I was a kid. Great job!! ### 5/5 — Best OG game ever!! *2020-12-19, version 1.01* It’s a hard game and that’s not a bad thing. This is the way a video game should be. I enjoy playing something that doesn’t give an easy way out or pay your way out. The content is engaging and I have a very hard time putting it down! 5 stars everyone should play this game. ### 5/5 — Refreshing is an understatement. *2020-12-18, version 1.01* This game brings a whole new meaning to nostalgia, and the simple creativity that is so often lost in today’s quest for pristine graphics. So fun. A unique story. And an extremely special game! ## Frequently asked questions about Xero Hour ### What is Xero Hour? Xero Hour is a retro sci-fi action adventure game where you play as Dr. Xero, stranded on an alien planet. You'll tap to navigate, collect items, and battle enemies to rebuild your ship and escape. ### What kind of gameplay can I expect in Xero Hour? Gameplay involves tapping to avoid enemies and obstacles, collecting items and power-ups, and defending against waves of enemies. There are also mechanics for collecting minerals to rebuild Dr. Xero's ship. ### Does Xero Hour have ads? Yes, Xero Hour contains advertisements. ### What devices is Xero Hour available on? Xero Hour is available on iPhone, iPad, and iPod devices. ### What is the age rating for Xero Hour? Xero Hour has an age rating of 9+. ### How often is Xero Hour updated? The latest version, 2.0.001, was released on March 29, 2022. The game was originally released on December 16, 2020. ### Can I play Xero Hour offline? The provided data does not specify if Xero Hour supports offline play. It is recommended to check the app store page for more details on connectivity requirements. ### What is the user rating for Xero Hour? Xero Hour has a rating of 5.0 stars from 1 rating. ## Version history (last 4 releases) ### 2.0.001 — 2022-03-29 Version 2.0 of Xero Hour is here! The hotly anticipated (by at least half a dozen real people) DLC "Jungles of Ancient K'Rell" is now available as an in game purchase! - Added Jungles DLC to shop! - Tweaked the rate of losing minerals on death in main game (with or without ads disabled) - Reorganized title screen ### 1.03.002 — 2020-12-30 Thanks SO MUCH for playing Xero Hour!! In this update: - Fixed a big with the placement of the charge meter in defense mode on iPads. - Camera Settings reminder pop-up added - Back and forth camera movement reduced in a few key areas - Tiny stats screen tweak ### 1.01 — 2020-12-17 Thanks for playing Xero Hour! This small initial update gives a short instruction when you successfully purchase anything in the game's store. ### 1.0 — 2020-12-16 No release notes. ## Apps similar to Xero Hour | App | Rating | Price | Category | | --- | --- | --- | --- | | [Galaxy Swirl: Action Runner](https://appshunter.io/ios/app/galaxy-swirl-action-runner/id6471663974) | 4.6 (56) | Free | Games | | [Super Adventure : Pepe](https://appshunter.io/ios/app/super-adventure-pepe/id6480004691) | 5.0 (3) | Free | Games | | [Leaping Legends](https://appshunter.io/ios/app/leaping-legends/id6449751047) | 5.0 (1) | Free | Games | | [Elderand](https://appshunter.io/ios/app/elderand/id6446288146) | 4.1 (34) | $6.99 | Games | | [Pixel Adventure - Platformer](https://appshunter.io/ios/app/pixel-adventure-platformer/id1610091794) | 4.8 (12) | Free | Games | | [Super Boy City Fighter Game 3D](https://appshunter.io/ios/app/super-boy-city-fighter-game-3d/id6476610254) | 3.0 (2) | Free | Games | ## Related topics [xero ltd](https://appshunter.io/ios/topics/xero-ltd) --- *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 2026-06-08.*