Games / Sinclair QL

BC's Quest for Tires

BC’s prehistoric ride arrives on Sinclair QL in MODE 4, supplied as both IMG and MDV.

BC's Quest for Tires for Sinclair QL: Sierra On-Line title screen.
Sierra On-Line title screen of the Sinclair QL edition.
BC's Quest for Tires running on Sinclair QL.
In-game on the Sinclair QL edition.

Screens from the QL edition, presented in 4:3 proportions.

The QL edition

Native Sinclair QL conversion in MODE 4. The original 320×200 game picture is adapted to the QL display; the build requires 640 KiB of RAM.

Computer: Sinclair QL
Graphics: MODE 4
RAM: 640 KiB
Included files: Bc’s_Quest_for_Tires.img and Bc’s_Quest_for_Tires.mdv
Conversion: Outsoftware, 2026, with ChatGPT and Codex

Loading and controls

Floppy: mount the IMG as flp1_ and run LRUN flp1_boot. Microdrive: mount the MDV as mdv1_ and run LRUN mdv1_boot.

From the menu: 1–4 starts one player at difficulty 1–4; 5–8 starts two alternating players. Space/Enter quickly starts one player. In play: Q / cursor up / Space jumps, A / cursor down ducks, and O/P slows down/speeds up. ESC pauses, S toggles sound and R restarts.

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