WiiWare is a service from Nintendo that allows people to download games to their Wii. Unlike the Virtual Console, which lets you play old games from the past, Wii Ware is composed of
completely mostly original titles.
It can be thought of as the Wii's approximate equivalent of the Xbox Live Arcade and Playstation Network. Like the Virtual Console, Wii Ware games are added to the roster once a week. Some games are playable online, such as Dr. Mario Online Rx and Tetris Party. Some games also have extra content that can be downloaded to the game for an extra fee, known as Pay + Play. Much like the other console's digital download services, Wii Ware has spawned some unique titles of its own.
- Adventure Island: The Beginning
- And Yet It Moves
- Art Style series
- Bit.Trip series
- Blaster Master Overdrive
- Bonsai Barber
- Boo Mansion Party
- Bomberman Blast
- Cave Story
- Clay Fighter
- Dr. Mario Online RX
- FAST Racing League
- Final Fantasy titles:
- Icarian: Kindred Spirits/Nyx Quest: Kindred Spirits: A platformer taking more than a little inspiration from Kid Icarus, the game stars winged heroine Nyx.
- Jett Rocket
- Konami Rebirth Series: (Gradius ReBirth, Contra ReBirth, and Castlevania: The Adventure Rebirth)
- Mega Man 9 and 10
- Tales of Monkey Island
- My Pokémon Ranch
- Onslaught: A First-Person Shooter released exclusively for WiiWare.
- Phoenix Wright Ace Attorney
- Pole no Daibouken, a Retraux platform game by Sega
- Pokémon Rumble: Pokémon meets Gauntlet (1985 video game).
- Snowpack Park
- Sonic the Hedgehog 4: Episode I 
- Strong Bads Cool Game for Attractive People
- Swords and Soldiers
- Tetris Party
- Toki Tori
- Water Warfare
- World of Goo
- Zombie Panic in Wonderland
- (Yes, Episode II won't come to Wiiware. Basically only the first half of the game is available.)