Pokémon Card Game Online (Japanese ポケモンカードOnline) was a Japanese-exclusive browser game built in Flash and the first Pokémon game of the MMOTCG (massively-multiplayer online trading card game) genre. It was based on the Pokémon Trading Card Game or TCG aspect of the Pokémon franchise and followed the same rules. Players were only able to play the game by registering with the unique acess number included in the Leafeon vs Metagross Expert Deck CD-ROMs and played against other opponents with fixed decks. The game's services were active between November 20, 2009 to August 31, 2010.
With any deck of choice, players could engage in ranked and unranked battles against random or chosen opponents, as well participate in scheduled tournaments. A monthly leaderboard based on ranked matches displayed the best 100 players of each age division (Junior, Senior and Masters), and the player's rank position. Players were also automatically assigned to a "team" upon registration based on the Legendary PokémonHo-Oh, Lugia, Entei, Suicune and Raikou, and the leaderboard's "Team Score" was an indicator of the team's perfomance against players of other teams.
Tournaments could be participated by using a tournament ticket or with no entry free at early events. Players were automatically awarded 5 tickets every Friday, and could have up to 10 tickets stored in an account. These events were always 4-player tournaments with single eliminations, divided by age divisions and often restricted to a single deck. Winning these tournaments rewarded players with cosmetic items.
Other minor features were the possibility of sending friend requests to players and using cosmetic items such as coins, playmats, deck boxes and changing the game's background, which were unlockable from tournaments and playing cumulative ammounts of matches.
List of constructed decks
The game originally contained four decks, with a fifth one available at Reviving Legends's release. The Leafeon and Metagross decks have the same contents as the physical decks included with the CD-ROM.