Pokemon Quarantine Crystal (GBC) – Full Fakemon Generation 2 Overhaul with Expanded Johto/Kanto Adventure and Modernized Crystal Systems
Game Information
Table Of Contents
About This ROM Hack
Pokémon Quarantine Crystal is a full Fakédex Pokémon Crystal hack built on the pokecrystal disassembly, featuring over 200 completely original Fakémon with unique sprites, cries, icons, and Pokédex entries. What began as an art-driven project during the global quarantine evolved into a massive collaborative ROM hack with new regions, mechanics, music, and systems—while retaining the soul of Generation II.
The current demo includes all of Johto and a large portion of Kanto, with 12 Gyms available, making it one of the most content-rich Gen 2 hacks currently in development.
Story Overview
Set in an alternate version of the Johto–Kanto world, Quarantine Crystal replaces the entire Pokémon roster with an original Fakémon ecosystem inspired by the “QuarantineDex” art project. Rather than retelling the original Crystal narrative, the hack reimagines the adventure around discovery—learning unfamiliar creatures, adapting to reworked mechanics, and exploring newly designed areas woven naturally into the Gen 2 world.
With expanded Kanto content now underway, the journey extends well beyond the Elite Four, encouraging exploration, side quests, and experimentation with the new Fakémon roster.
Key Features
- Full Fakédex: 200+ brand-new Pokémon with original designs, cries, icons, and Pokédex entries.
- Expanded World: Complete Johto and a significant portion of Kanto, including new areas like Tidal Cave, Garden Glade, and Taiko Festival Grounds.
- Revamped Visuals: Entirely new tilesets, updated overworld sprites, redesigned trainers, and Gen 1.5–style blue NPC palettes inspired by Spaceworld demos.
- Mechanical Overhaul: Physical/Special split, increased level curve, rebalanced battles, no in-battle revives, and major move changes.
- HM Rework: HMs are now TMs and no longer required to be learned for traversal.
- Quality-of-Life Improvements: Reusable TMs, Gen V+ repel system, EXP for catching Pokémon, expanded bag space, proper Apricorn Ball functionality, move reminder, and more.
- New Content Systems: Trading Cards collectibles, new trainer classes, and an expanded action system for overworld interactions.
- Audio Enhancements: Several original tracks composed specifically for the hack.
- Battle Facilities: A Kanto-based battle area inspired by an updated Fighting Dojo.
- Super Game Boy Border: Available when played on the BGB emulator.
Known Bugs & Issues
- Incorrect time-of-day palettes on certain dark maps.
- Lucky Number ID gift currently gives the wrong doll.
- Retroglyph Dex icons may appear scrambled.
- Visual glitch involving Lance in the Underground Rocket Base.
- Poké Ball sprite may persist briefly after leveling up from a catch.
Screenshots
Download Links
Demo v0.804: MediafireDeveloper Information
Developer / Team: GiantPigeon
Credits:
Art:
- op/kaijuanon/daz for the mon designs and sprites. The heart and soul of this project.
- Varmintz for trainer sprites and some new tiles
- Gojee for Lamseed line designs
- Autumnraptor for Nyalley line designs
- beatrix cromwell for Todescool's design
- Varmintz and anonymous contributor for Unown fossil tiles.
- Many anonymous contributors, Varmintz, TC, gueso and Emi Monserrate for menu icons.
Music:
- Toothpaste for new music except for the "legend" theme, which was done by MelonadeM.
Coding:
- pret pokecrystal wiki and its many contributors for teaching me how to do .asm and doing 90% of the heavy lifting.
- CoralDev and pfero for more than I could reasonably list here. Thank you both so much.
- Ragni and TPP Anniversary Crystal Devs for Move Reminder code.
- Electro for help with added evolution methods.
- Cam with project management help.
- Seatree for Hyper Beam code.
- Soup/SourCrystal's dev for move animations.
- Gojee for many, many mon cries.
ETC:
- CaptainAhab and gojee for promo art.
- All the anonymous contributors for their design prompts, icons, flavor text, dex entries, and ideas.
- /rheg/ and the rheg + pret + rhh discords for their support and help
Source & References
Community Link: https://discord.gg/wcDNGg4RmA
Frequently Asked Questions
Q: What is Pokemon Quarantine Crystal?
A: It is a Pokémon Crystal ROM hack that replaces the entire Pokédex with over 200 original Fakemon and expands Johto and Kanto with new content.
Q: Is this a story remake or gameplay overhaul?
A: It is mainly a gameplay and content overhaul, keeping the Crystal structure but changing nearly everything else.
Q: How many Pokémon are in the game?
A: Over 200 custom Fakemon with unique designs, cries, and sprites.
Q: Does the game include Kanto?
A: Yes, Kanto is included with additional areas and expanded content beyond the original Crystal version.
Q: Is the battle system changed?
A: Yes, it includes Physical/Special split, move rebalancing, and difficulty adjustments.
Q: Are there QoL improvements?
A: Yes, including reusable TMs, move reminder, expanded bag, and modern repel system.
Q: Who is this hack for?
A: Players who enjoy Fakemon-heavy games, Gen 2 expansions, and creative experimental ROM hacks with strong artistic direction.
Q: Is the game complete?
A: No, it is still a demo with ongoing updates and improvements.
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