I have not extensively developed for BYOND so this will take some time to fully implement.
Relevant Skills and Experience
I have used BYOND before, mainly with Space Station 13 games, and have nearly a decade's worth of game programming experience.
Proposed Milestones
$5 AUD - Working game prototype.
$10 AUD - All major mechanics added, unpolished and/or buggy behavior expected.
$10 AUD - Fully polished and feature-complete.