If the file is named hollow_knight , rename it to Hollow Knight (or vice versa if it already matches the expected pluralization). :
For Mac OS X users, of the game that ran flawlessly on older Mac hardware without performance stutters or compatibility layers. Later versions (1.4 and up) introduced heavy graphical effects that older MacBooks (pre-2015) struggled with, or they required Metal API, leaving High Sierra and Mojave users behind. hollow knight 1031 mac os x