RollerCoasterBuilder v. Coaster

In 1993, shortly after Walt Disney Computer Software released Coaster, RollerCoaster Builder developer TechEruo sued Coaster developers and publishers Code to Go and Walt Disney Computer Software, in order to be accused that Coaster is ripping off the successful video game RollerCoaster Builder, which had higher sales than on Coaster.

Results
Walt Disney P&R had rights to use their properties in the RCB series, they immediately surrendered and the game was taken off the shelf.