Wyr is a physics sandbox with wire functionality, built to be the true successor of IncrediBots, being powered by its source. I was going to make a new engine for the game, until I realized how much easier it would be on me using IncrediBots source.
Game modes planned for first public release (MP only modes will be released in first public MP release):
Sandbox: Standard mode. Build for some kicks and giggles.
Challenge: Standard IB2 challenge mode, and IB2 challenges can be loaded. (if I bother with using the import and exports)
CTF (MP only): Take the enemy flag, and bring it to base in one piece!
Deathmatch (MP only): Make killer robots to rain doom upon others.
Map Editor: Select a game mode you would like to create a map for, and build it!
Many more modes will be created, but that will be later on in the game's life.
This idea for IB's successor has been critically acclaimed at IncrediFriends, the community site made for IB users to keep in touch.