Pokémate (lost inaccessible "Pokémon" Japanese mobile phone app; 2006)
PokéMate is a mobile phone game developed by Square-Enix and released in 2006. The game allowed players to capture Pokémon, chat with other players, and take care of their Pokémon in a virtual pet simulator mode. New players only receive 10 Poké Balls and a random Pokémon to start. However, a "formal service edition" was released for a monthly fee of 210 yen to get more Poké Balls, Pokémates, and media within the app.
The chatroom feature allowed different players' Pokémon to sign messages between two players. This aspect of the game worked similarly to email.
The game was only released in Japan but was shown at E3 and was expected to receive a wider release in 2008. It didn't receive much attention from the press in Japan or the US during its lifespan. However, the service was discontinued in Japan in 2008 and was never available in the rest of the world. Beyond some screenshots, and some footage of the game, there is no way to access it since its discontinuation.
- Chuggaaconroy (found early Pokémon Platinum videos from YouTuber; 2008)
- PokéPark: Asari Taikai DS (lost "Pokémon" Nintendo DS Download Play game; 2005)
- Pokémon Crystal Version (lost Japan-only Mobile Adapter GB content for Game Boy Color role-playing game; 2001-2002)
- Pokémon Mystery Dungeon: Gold Rescue Team -Challenge the Gold Rank!- (lost South Korean promotional demo of Nintendo DS game; 2007)
- Pokémon Mystery Dungeon: Rescue Team (partially found official website content of Nintendo DS/Game Boy Advance games; 2006)
- Pokémon 2000 Adventure Game (partially found browser-based online game; 2000)
- Pokémon.com (lost online games from website; pre 2010-2011)
- Twitch Plays Pokémon (partially found footage of Let's Play channel; 2014)
- Pokémon Gold and Silver Versions (found early SpaceWorld '97 demo build of Game Boy Color role-playing games; 1997)
- Pokémon PC Master (partially found Japanese educational PC game; 2006)
- Pokémon Picross (found build of cancelled Game Boy Color puzzle game; 1999)
- Pokémon Pink Version (lost build of cancelled Game Boy role-playing game; existence unconfirmed; late 1990s)
- Pokémon Stars Version (lost enhanced Nintendo Switch port of "Pokémon Sun and Moon" Nintendo 3DS role-playing games; existence unconfirmed; 2017)
- Pikachu: DS Tech Demo (lost "Pokémon" Nintendo DS tech demo; 2004)
- Pocket Monsters 64 (lost build of unreleased "Pokémon" Nintendo 64DD role-playing game; 1990s)
- PokéROM (found "Pokémon" edutainment series; 2000)
- Famitsu article announcing the game (translated). Retrieved 01 Sep '19