Pokémon Sirius English Translation – Challenging Hoenn Fakemon Adventure with Meteoric Pokémon and Massive Post-Game Content
Game Information
Table Of Contents
About This ROM Hack
Pokémon Sirius is one of the original ROM hacks developed by the anonymous Vega Development Team, the same creators who later became known for Pokémon Vega. Released alongside its counterpart version, Pokémon Altair, Sirius offers a challenging reimagining of Hoenn filled with original Pokémon species, expanded lore, custom content, and a lengthy post-game storyline.
This English version was fully translated by Dr. Akimbo, making the game accessible to a wider audience while preserving the original Japanese experience. Like Altair, Sirius takes place in a Hoenn region forever changed by a catastrophic meteor event. The disaster reshaped landscapes, caused widespread extinction among native Pokémon species, and introduced mysterious creatures known as Meteoric Pokémon.
The game follows the classic Pokémon progression formula but adds a significantly darker narrative, original characters, new Gym Leaders, custom moves, custom music, and a roster containing dozens of Fakemon. Sirius is particularly known for its challenging battles and extensive content beyond the Pokémon League.
The primary difference between Sirius and Altair lies in the wild Pokémon distribution, giving players access to different Pokémon depending on which version they choose.
Story Overview
Three years before the events of the game, Hoenn suffered a devastating meteor shower known as the Hoenn Catastrophe. The disaster transformed much of the region into wastelands, destroyed important landmarks such as the Battle Frontier, and dramatically altered local ecosystems. Many Pokémon species disappeared, while strange new creatures called Meteoric Pokémon began appearing across the region.
You begin your adventure after moving to Littleroot Town, where Professor Birch asks you to help document these newly discovered species by completing the Pokédex. Along the way, you meet several new characters, including April or Gordon, Billy, and the eccentric prankster Mosmero.
As you travel through Hoenn's Gym Challenge, you become caught between two opposing organizations. Team BH, led by Wallace, seeks to impose order on the world through absolute control, while Team WH, led by Steven, initially appears to oppose them.
The conflict escalates as both organizations pursue legendary Pokémon and powerful artifacts connected to the meteor disaster. Team BH succeeds in awakening Groudon through the use of an artificial Pokémon named Aldina, while Team WH later reveals its own sinister agenda by awakening Kyogre.
The truth eventually comes to light when it is revealed that both Wallace and Steven had fallen under the influence of Nemea, one of three powerful Meteoric Pokémon capable of controlling minds. Alongside Nemea, two other legendary Meteoric Pokémon—Lylapse and Ganimede—played major roles in the chaos that followed the Hoenn Catastrophe.
After defeating the Pokémon League and becoming Champion, the story continues with a substantial post-game adventure in Alto Mare, a city inspired by Pokémon Heroes. There, players uncover Aldina's tragic origins, explore the mysterious Sphere Ruins, encounter legendary Pokémon, and discover lore that directly connects to the future events of Pokémon Vega.
The post-game serves as much more than a bonus chapter, acting as a major continuation of the main storyline and expanding the game's world significantly.
Key Features
- 83 Original Fakemon: Encounter dozens of completely original Pokémon species designed specifically for the Altair and Sirius universe.
- Meteoric Pokémon Lore: Discover mysterious Pokémon created by the meteor disaster that reshaped Hoenn.
- Reimagined Hoenn Region: Explore a familiar region transformed by environmental catastrophe and new regional history.
- Custom Pokédex: Features a unique Pokédex containing original Pokémon and selected species from later generations.
- Custom Moves: Includes new attacks and battle options not found in the original Pokémon Emerald.
- High Difficulty Gameplay: Designed to provide a significantly tougher challenge than official Pokémon games.
- Custom Music: Features an impressive soundtrack that helps distinguish the game from standard Hoenn adventures.
- Revised Trade Evolutions: Trade-based evolutions have been modified to better support single-player progression.
- Trainer Rematches: Most important trainers can be challenged again for additional difficulty and training opportunities.
- Extensive Alto Mare Post-Game: Continue the adventure after becoming Champion through a large amount of additional story content.
- Multiplayer Compatibility: Supports multiplayer functionality while maintaining custom content and mechanics.
- Pokémon Vega Prequel: Establishes important lore and story elements that later appear in Pokémon Vega.
- Version-Exclusive Wild Pokémon: Sirius contains different wild Pokémon encounters compared to Altair, encouraging replayability and version comparison.
Known Bugs & Issues
- Occasional scripting glitches are typical of early-generation hacks
- Inconsistent difficulty balance in mid-to-late game
- Limited in-game documentation
- Some mechanics may feel dated compared to modern hacks
- Players should expect a high level of difficulty by design. Some mechanics and balancing choices reflect the era in which the original Japanese version was developed rather than modern ROM hacking standards.
Download Links
Documentation
Pokémon Altair & Pokémon Sirius Walkthrough by Olivia R.
Developer Information
Developer / Team: Pokemon Vega Team
- Translation: Dr. Akimbo
- Pokemon Names: Dr. Akimbo, Pokemon Vega Team, Asfia, Bevan7, Doesnt, Ganon's Error, Hawkfire, kisekisfir, LightningLord2, Lucis, Mighty Revenant, quiggles, Silphver, SilverStrangequark, Toyotasomi no Miko, Z-nogyroP
- Move Names: Dr. Akimbo, Wizards of the Coast, Doesnt, Ketsuban, Mighty Revenant
- Title Screen Logo: kisekisfir
- Text Hacking: Dr. Akimbo
- Graphics Porting: Dr. Akimbo, Doesnt, Chrunch, El Diabeetus, Tailes
- Music Porting: Dr. Akimbo
- Map Porting: Dr. Akimbo, Doesnt
- Mechanics Porting: Doesnt, Tailes, Dr. Akimbo
- Compatibility Patch: Diegoisawesome
Frequently Asked Questions
Who is this hack/game for?
Pokémon Sirius is ideal for players who enjoy challenging Pokémon ROM hacks, Fakemon-heavy adventures, deeper lore, and lengthy post-game content.
What is the difference between Pokémon Sirius and Pokémon Altair?
The story, regions, and overall progression are largely identical. The main difference is the available wild Pokémon encounters.
Is Pokémon Sirius connected to Pokémon Vega?
Yes. Sirius serves as a prequel and introduces several important story elements, locations, and concepts that later appear in Pokémon Vega.
How many Fakemon are included?
The game features 83 original Fakemon along with selected Pokémon from later generations.
How difficult is Pokémon Sirius?
It is considerably more difficult than standard Pokémon Emerald and is aimed at players looking for a more demanding experience.
What are Meteoric Pokémon?
Meteoric Pokémon are mysterious new species that appeared following the Hoenn Catastrophe and play a central role in the game's story.
Does the game have a post-game story?
Yes. Alto Mare contains one of the most substantial post-game sections found in classic Pokémon ROM hacks, featuring new story events, exploration, and battles.
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