They are different builds
Version comparison
| 2025 Demo | 2026 Early Access | |
|---|---|---|
| Story | A non-canon mysterious island between Hoenn and Sinnoh | Rebuilt Pokémon Emerald story and events in Hoenn |
| Current scope | Short island demo | Littleroot through Mauville, three gyms |
| Status | Unsupported | In development and actively updated |
| Official page label | “DEMO (Not early access) No Support” | “Gamma Emerald - EA” |
| Download | Old 1 GB demo | Current Windows EA archive |
The demo has its own story with mercenaries, Team Magma, jungle ruins, puzzles and legendary Pokémon. Those facts should not be mixed into a current Hoenn walkthrough. The EA instead focuses on recreating the original story with modern systems.