Nintendo explains the decision behind blocking release of Dolphin emulator

The planned Steam release for the emulator Dolphin was ‘indefinitely postponed’ on May 27, as announced by the creators, stating that “Nintendo issued a cease and desist citing the DMCA against Dolphin’s Steam page.” resulting in the page being removed immediately. 

With emulation being a gray area in terms of legality, Dolphin makes use of the Wii Common Key in the emulator, meaning it's actively bypassing piracy protection measures. 

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