RPG Offline: OS Core Quest
Turn-Based Cyber Roguelite RPG
Free · In-App Purchases · Designed for iPad
#1 RPG Offline
▶ You are a modern white-hat hacker. After sleepless nights, you collapse on your keyboard… and wake up in 2150!!!
▶ You are a modern-day white-hat hacker.
After countless sleepless nights, you collapse from exhaustion and fall asleep on your keyboard… then wake up in the year 2150!!!
You are trapped inside a collapsing digital world.
The Core System — the heart of this entire networked world — has been shattered into fragments after a mysterious catastrophe. Rogue viruses, corrupted AI, and mutated data entities are taking over every region of the digital OS.
As the last Restorer Hero, you must explore broken OS zones, collect the lost Core Fragments, and restore the system before the entire digital world is erased forever.
Uncover the truth behind this collapsing world, discover why you were brought here — and unlock hidden endings shaped by how you survive.
▶ Uncover the Secrets of OS Core Quest
Collect 10 Core Fragments and discover what caused the digital world to collapse.
Each restored zone reveals another piece of the story behind the Core System’s fall.
Explore a neon cyber world built around classic turn-based RPG mechanics:
▶ Move across tactical RAM grid maps
▶ Battle bugs, AI viruses, system bosses, and dangerous data entities
▶ Upgrade your character, equipment, and skills
▶ Discover rare items and random rewards from Rare Chests
▶ Complete quests to unlock new regions
▶ Face enemies with unique abilities: Poison, Burn, Shield, Drain Energy, Summon…
▶ Explore unique and dangerous cyber zones
▶ Use Shop, Equip, and Item Upgrade systems to grow stronger
▶ Compete on global leaderboards via Game Center
▶ Fully offline — play anytime, anywhere
Can you collect every Core Fragment and save the Core System before the digital world disappears forever?
Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
more ▶ Reduced interstitial ad frequency.
The free experience is now smoother and less disruptive.
▶ VoiceOver Accessibility Added.
Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added COPY and REPAIR Protocols.
Copy enemy routines, PASTE them once in battle, and convert EN into HP once per battle.
▶ Added TERMINAL System and Hidden Ending.
Explore logs, scan data, uncover secrets, and discover the truth behind the Core Fragments.
▶ Added HERO Keyboard progression and BESTIARY Collection.
Unlock permanent upgrades, hunt enemies, collect monster cards, and keep progress across New Games.
22 29 Jun
▶ Reduced interstitial ad frequency.
The free experience is now smoother and less disruptive.
▶ VoiceOver Accessibility Added.
Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added COPY and REPAIR Protocols.
Copy enemy routines, PASTE them once in battle, and convert EN into HP once per battle.
▶ Added TERMINAL System and Hidden Ending.
Explore logs, scan data, uncover secrets, and discover the truth behind the Core Fragments.
▶ Added HERO Keyboard progression and BESTIARY Collection.
Unlock permanent upgrades, hunt enemies, collect monster cards, and keep progress across New Games.
20 26 Jun
▶ Reduced interstitial ad frequency.
The free experience is now smoother and less disruptive.
▶ VoiceOver Accessibility Added.
Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added COPY and REPAIR Protocols.
Copy enemy routines, PASTE them once in battle, and convert EN into HP once per battle.
▶ Added TERMINAL System and Hidden Ending.
Explore logs, scan data, uncover secrets, and discover the truth behind the Core Fragments.
▶ Added HERO Keyboard progression and BESTIARY Collection.
Unlock permanent upgrades, hunt enemies, collect monster cards, and keep progress across New Games.
19 22 Jun
▶ Reduced interstitial ad frequency.
The free experience is now smoother and less disruptive.
▶ VoiceOver Accessibility Added.
Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added COPY and REPAIR Protocols.
Copy enemy routines, PASTE them once in battle, and convert EN into HP once per battle.
▶ Added TERMINAL System and Hidden Ending.
Explore logs, scan data, uncover secrets, and discover the truth behind the Core Fragments.
▶ Added HERO Keyboard progression and BESTIARY Collection.
Unlock permanent upgrades, hunt enemies, collect monster cards, and keep progress across New Games.
18 19 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added COPY Protocol.
▶ Copy enemy routines and PASTE them once in battle.
▶ Added REPAIR Protocol.
▶ Convert EN into HP once per battle.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
17 17 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added COPY Protocol.
▶ Copy enemy routines and PASTE them once in battle.
▶ Added REPAIR Protocol.
▶ Convert EN into HP once per battle.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
16 16 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
15 15 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
12 13 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
▶ Fixed an issue where Premium players could occasionally see interstitial ads in certain screens.
11.1 11 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
10.1 11 Jun
▶ VoiceOver Accessibility Added.
▶ Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added TERMINAL System.
▶ Explore logs, scan data, and uncover hidden secrets.
▶ Added HERO Keyboard progression.
▶ Progress does not reset on New Game.
▶ Added BESTIARY Collection.
▶ Hunt enemies and unlock monster cards.
▶ Progress does not reset on New Game.
▶ New Female Character.
▶ Fast skills. High damage.
▶ Added a Hidden Ending.
▶ Discover the truth behind the Core Fragments.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages.
9.9 9 Jun
▶ VoiceOver Accessibility Added.
▶ Map tiles, player position, rewards, battles, and key game screens now support VoiceOver for blind and visually impaired players.
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ HERO Keyboard does not reset on New Game.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Added BESTIARY Collection.
▶ Hunt enemies, unlock monster cards.
▶ Progress does not reset on New Game.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.8 8 Jun
▶ VoiceOver Accessibility Added.
▶ Map tiles, player position, rewards, battles, and key game screens now support VoiceOver for blind and visually impaired players.
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ HERO Keyboard does not reset on New Game.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Added BESTIARY Collection.
▶ Hunt enemies, unlock monster cards.
▶ Progress does not reset on New Game.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.7 4 Jun
▶ VoiceOver Accessibility Added.
▶ Map tiles, player position, rewards, battles, and key game screens now support VoiceOver for blind and visually impaired players.
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ HERO Keyboard does not reset on New Game.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Added BESTIARY Collection.
▶ Hunt enemies, unlock monster cards.
▶ Progress does not reset on New Game.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.6 3 Jun
▶ VoiceOver Accessibility Added.
▶ Map tiles, player position, rewards, battles, and key game screens now support VoiceOver for blind and visually impaired players.
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ HERO Keyboard does not reset on New Game.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.5 2 Jun
▶ VoiceOver Accessibility Added.
▶ Map tiles, player position, rewards, battles, and key game screens now support VoiceOver for blind and visually impaired players.
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ HERO Keyboard does not reset on New Game.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.3 1 Jun
▶ VoiceOver Accessibility Added.
▶ Map tiles, player position, rewards, battles, and key game screens now support VoiceOver for blind and visually impaired players.
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ HERO Keyboard does not reset on New Game.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.2 31 May
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ Use Gold to upgrade your permanent Keyboard.
▶ HERO Keyboard does not reset on New Game.
▶ Each new run helps you grow stronger.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.1 28 May
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ Use Gold to upgrade your permanent Keyboard.
▶ HERO Keyboard does not reset on New Game.
▶ Each new run helps you grow stronger.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Fully optimized for iPhone and iPad.
▶ Supports 8 languages: English, Japanese, Korean, German, Spanish, Portuguese, Chinese, Vietnamese.
9.0 27 May
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ Use Gold to upgrade your permanent Keyboard.
▶ HERO Keyboard does not reset on New Game.
▶ Each new run helps you grow stronger.
▶ Added Debug Lock passive skill.
▶ Temporarily paralyze corrupted enemies.
▶ New Female Character
▶ Fast skills. High damage.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Fully optimized for iPhone and iPad.
▶ Languages supported: English, Chinese, Spanish, Vietnamese.
8.0 26 May
▶ Added HERO Keyboard progression for Roguelite RPG runs.
▶ Use Gold to upgrade your permanent Keyboard.
▶ HERO Keyboard does not reset on New Game.
▶ Each new run helps you grow stronger.
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Recover lost Core lore by clearing stages.
▶ Discover the mystery behind the broken OS.
▶ Fully optimized for iPhone and iPad.
▶ Languages supported: English, Chinese, Spanish, Vietnamese.
6.1 22 May
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Recover lost Core lore by clearing stages.
▶ Discover the mystery behind the broken OS.
▶ Fully optimized for iPhone and iPad.
▶ Languages supported: English, Chinese, Spanish, Vietnamese
6.0 21 May
▶ Added a Hidden Ending for skilled Restorers.
▶ Added the Core Fragment story system.
▶ Recover lost Core lore by clearing stages.
▶ Discover the mystery behind the broken OS.
▶ Fully optimized for iPhone and iPad.
▶ Languages supported: English, Chinese, Spanish, Vietnamese
4.0.2 19 May
▶ New Core Fragment story system.
▶ Clear stages to recover lost Core lore.
▶ Discover the mystery behind the broken OS.
▶ Major visual overhaul and gameplay improvements.
3.0.3 16 May
▶ New Core Fragment story system.
▶ Clear stages to recover lost Core lore.
▶ Discover the mystery behind the broken OS.
▶ Gameplay polish and improvements.
1.1.6 14 May
▶ Reduced interstitial ad frequency.
The free experience is now smoother and less disruptive.
▶ VoiceOver Accessibility Added.
Map exploration, battles, rewards, and key game screens now support VoiceOver.
▶ Added COPY and REPAIR Protocols.
Copy enemy routines, PASTE them once in battle, and convert EN into HP once per battle.
▶ Added TERMINAL System and Hidden Ending.
Explore logs, scan data, uncover secrets, and discover the truth behind the Core Fragments.
▶ Added HERO Keyboard progression and BESTIARY Collection.
Unlock permanent upgrades, hunt enemies, collect monster cards, and keep progress across New Games.
more Version 22 29 Jun
Data Used to Track You The following data may be used to track you across apps and websites owned by other companies:
Location Identifiers Usage Data Diagnostics Data Not Linked to You The following data may be collected but it is not linked to your identity:
Location Identifiers Usage Data Diagnostics 
