Bugão’s Small Favor · Jojo’s Shenanigans

A small favor on a cosmic scale

Bugão wants you to feed a black hole. You start by breaking asteroids, watch their fragments get absorbed, and turn minerals into upgrades for the next run. The idea is to grow from small rocks to ever larger celestial bodies, working toward the fairly modest goal of erasing the universe.

The game combines incremental progression, timed runs, and a single-player campaign with the studio cat’s dry humor. Between runs, you choose where to invest resources and track the growth of accumulated mass. Progression and the campaign remain under development and balancing.

Pixels in motion

Layered asteroids, an animated black hole, stars, and fragmentation effects make up the playfield. Minerals use chemical symbols and colors to help readability. The VHS/CRT finish can be disabled, and a reduced-motion option is available alongside video and language preferences.

Bugão’s Small Favor menu in Portuguese with options to continue, start a campaign, and open settings beside the black hole. — Real screenshot of the application running on macOS on October 1, 2026. Images on this page show a build from before the first upgrades were integrated; art, the interface, and values continue to evolve.

Built with Core Engine

Written in C# with .NET Native AOT, the game uses our Core Engine’s Runtime, shared clock, scenes, and rendering. Orbital dynamics implemented in the game advance in fixed 10 ms steps — 100 Hz, with central gravity, collisions, and fragments that inherit their parent asteroids’ velocity.

Fixed-point math, Int128 intermediates, and explicit work bounds help control simulation precision and cost. Presentation reuses the engine’s GPU resources, while orbital dust forms curved trails with preallocated storage. Our announcement explains the simulation techniques and engineering care.

Development status

A native build already includes an opening, menu, settings, runs, collisions, damage, and results. Work has progressed on fragmentation, resource absorption, and the first upgrades between runs. Progress is saved locally through checkpoints, and the interface supports Brazilian Portuguese and English.

The focus now is iterating on progression, the campaign, run pacing, and the finishing work on art and audio. The first validation platform is macOS with Apple Silicon; other platforms will be announced after their own native validation.

Bugão’s Small Favor settings in Portuguese with VHS/CRT, reduced motion, video synchronization, frame-rate limit, fullscreen, and language options. — Settings from the October 1, 2026 build. This is a real screenshot of the game, still in development.

Community testing, coming soon

Bugão’s Small Favor will soon be available for testing inside Jambor Launcher. There is no announced date or public game build available yet.

The community will participate in decisions about the future of development: improvement priorities, balancing, readable effects, and what should enter the next versions. We want to build these next steps with the people playing.

Meet Jambor Launcher and learn how to install the launcher beta to get ready. The opening of testing and participation instructions will be announced on the blog.

Development changelog

Read the development version history. These milestones do not imply a public game release.