Pokemon Sirius is the counterpart to Pokemon Altair in the legendary Vega Team trilogy — a challenging Emerald hack that reimagines Hoenn after a catastrophic meteor shower, introducing original Fakemon, revamped routes, tougher trainers, and a bridge to the sequel Pokemon Vega.
The prequel companion to Pokemon Altair — a foundational Japanese ROM hack from the Vega Team.
Three years after Champion Brendan's retirement, a massive meteor shower devastates Hoenn — the "Hoenn Catastrophe." Landscapes are reshaped, many species vanish, and strange new "Meteoric Pokémon" appear. Pokemon Sirius lets you explore this altered Hoenn, facing tougher battles and discovering a fresh regional dex packed with original Fakemon.
As the partner version to Altair (differences mainly in wild encounters), it sets the stage for the critically acclaimed Pokemon Vega sequel. This is a fan-favorite for its challenge, creativity, and place in ROM hacking history.
The Hoenn you know is gone. Meteors have scarred the land, driven Pokémon to extinction in some areas, and introduced bizarre new species. Your journey uncovers the aftermath: new routes, altered gyms, and the mystery of the meteoric arrivals. While the core plot follows a classic "become Champion" path, the world feels transformed and more dangerous.
Mild spoiler note: Events tie into familiar Hoenn lore but from a post-catastrophe lens — no major canon spoilers, but expect surprises in ecology and legendaries.
Pokemon Sirius is notoriously tough — especially compared to vanilla Emerald. Expect smart trainers, level spikes, and battles that demand strategy, coverage, and sometimes grinding or EV training.
A GBA ROM hack based on Emerald by the Vega Team (Japanese origin), with an English fan translation. It's the counterpart to Altair and prequel to Vega, featuring a post-catastrophe Hoenn with new Fakemon and high difficulty.
Significantly tougher than vanilla Emerald — upgraded AI, level curves, and battles require strategy. Great for challenge seekers; casual players may want the "Minus" difficulty patch.
Yes — over 181 original Fakemon, Meteoric species, and some from later generations. The regional dex is shared with Altair.
Yes — direct prequel. Playing Sirius/Altair enhances understanding of Vega's story and world.
Yes — our browser emulator works on phones/tablets (use landscape mode for best controls). No download required.
Check the PokeCommunity discussion thread for English patches, updates, and community tips (search "Pokemon Altair Sirius English" on PokeCommunity).
Enjoyed Sirius? Try its partner Altair or the sequel Vega for the full experience.