Game (Maelstrom) has strange geometry issue, making it unplayable

[nmonkman]

Describe the bug
Maelstrom (game) starts fine but is unplayable. At various ship rotations, thrust pushes the ship in the wrong direction. Blasters also shoot in the wrong direction. FPU issue perhaps?

To Reproduce
Mount a Maelstrom HDA system image (I used version 1.3) and run the game

Screenshots
See screenshot below, bullets shooting in the wrong direction

Configuration
Version of Snow you are running (from the title bar): v1.4.1
Host operating system: macOS Tahoe 26.3.1 (a)
Macintosh model you are emulating: Mac IIcx
OS you are emulating, including version and extensions (if relevant): System 7.1

Other relevant details
I've seen the same issue on Mini vMac. I've also seen in with similar games (Oids) on other emulators, though Oids works great with the above config on Snow

[bradtchapman]

Just some thoughts here... have you tried different UI scaling options, and relative vs. absolute mouse position?

[nmonkman]

I'll try different UI scaling - it's primarily a keyboard game so I'm guessing it isn't a mouse issue