Powder Toy-Like Homebrew for Nintendo DS? None Exist
There is no direct equivalent of The Powder Toy on Nintendo DS homebrew.
Why?
CPU Limits: DS (67/133 MHz ARM7/ARM9) lacks the raw compute for thousands of particle physics interactions at 60 FPS.
RAM Constraints: 4 MB (DS) / 16 MB (DSi) main RAM—particle grids need large arrays.
Homebrew Focus: DS scene matured around emulators (NES, SNES, GB), media players (Moonshell), and ports (Doom, Quake, Cave Story), not original physics sandboxes.
Closest DS Experiences:
The World Ends With You – Stylus-based combat with elemental pin combos (creative but not sandbox).
Professor Layton series – Puzzle logic, not physics.