i downloaded and unpacked rct2 from gog and launched the openRCT2 Launcher. After linking to the correct file path the startscreen seems to build normally, and i can even toggle between Debug/Version text pressing the 'T' key, but i cant click or to start a new game. The cursor seems to remain the regular os cursor, so it might seem like there is an issue to activate the window into the foreground. Thanks!
ORCT2 version 0.2.2 on MacOS10.14
edit// on further testing i noticed the game window only show the lower left quarter of the actual game, i cant scroll to other parts and resizing the window itself only resizes that quarter, full screen doesnt work either
EDIT2// changing the renderer to opengl fixed it