While the Dolphin Emulator remains available as a separate download for Windows, macOS, and Linux from the project’s official website, having it on Steam could have provided the software with increased legitimacy and exposed it to a wider audience.
The Dolphin team acknowledged that Valve has the authority to set conditions for software to appear on their platform. However, due to Nintendo’s firm stance on emulation, the requirement to obtain Nintendo’s approval for a Steam release was deemed unattainable, leading to the unfortunate cancellation.