Ah! The reason it probably didn't fail for me on a real ST is because I didn't have a mouse plugged in, so it was always set to the same mouse X/Y values. Have updated, seems to run in Steem okay now and also on the real thing. Thanks for your help! :) New version here: https://drive.google.com/file/d/1PUIhs_srobUWJpSvZj2w0VRr9lCRIk8D/view
Have had a report that my game Droid Special Edition (attached) doesn't respond to joystick input on Steem SSE 4.0. I'm able to replicate the problem myself with 4.0, however the game works perfectly on Steem SSE 3.4, Hatari 2.2.1, and a real STE. Very strange! Any ideas?