Cartoon portrait of Josh and Allen SulzenSulzie Bros · Indie Games

Two brothers.
Games built to be played.

We're Josh and Allen — we make mobile apps and games we actually want to play. Free, no ads, no nonsense.

Audiocopter app icon

Audiocopter

Fly the waveform of your own music.

Upload a song and the cave becomes its sound — the beat punches the walls as it plays past you. Hold, tap, or press space to climb; clear the whole track without crashing. Every song is a new level.

FreeNo AdsOfflineYour Music
Black Hole Arena app icon

Black Hole Arena

Outfly the pull. Blast rivals into the void.

A fast, physics-driven space duel for 2–4 players. Thrust, drift, and slingshot around a growing black hole while you shove your rivals into it. Host a lobby, share a 4-letter code, and fight to be the last ship flying — phones, tablets, and desktop web players all in the same match.

FreeNo AdsNo Accounts2–4 Player Online
Black Hole Arena gameplay: four ships orbiting a black hole as meteors streak across the arena
Blue Takeover app icon

Blue Takeover

The blue is coming. Hold the line.

A precision survival tap game. The blue floods your board tile by tile — tap it back before a tile is fully taken, but tap a clean tile by mistake and you black it out forever. One board, accelerating pressure, and a live-generated synthwave soundtrack that tightens as the takeover closes in.

FreeNo AdsOfflineOne More Run
Jar Boys app icon

Jar Boys

Squad up. Lock in. Most kills wins.

A top-down peer-to-peer squad shooter for 2–8 players, built on the Black Hole Arena engine. Free-for-all or team deathmatch — one shot one kill, claymores, respawns, and a live K/D board. Now with touch controls: joystick to move, tap anywhere to shoot. Early access — tell us what feels off.

FreeNo Ads2–8 Player OnlineEarly Access
Orbitone app icon

Orbitone

Slow funk meets orbital physics.

An instrument, not a game: a generative slow-funk jam machine with a step sequencer, chord progressions, and a full mixer — plus Orbit mode, where you fling planets around glowing suns and every close pass plays a note. Five audio-reactive visualizers, and record everything straight to a file. No loops, no samples — every sound is synthesized live.

FreeNo AdsGenerativeRecord & Share
Sulzie Go app icon

Sulzie Go

An ancient game, a beautiful board.

Go, the 4,000-year-old game of surrounding territory, on a warm wood board that glows in the dark. Pass-and-play with a friend on 9×9, 13×13, or 19×19 — full rules, captures, ko, and Chinese scoring. A bot that teaches you the game and play-by-link correspondence games are on the way.

FreeNo AdsNo AccountsEarly Beta
Solar Stride app icon

Solar Stride

One small step, then keep running.

A 3D endless runner across the solar system. A chunky astronaut strides one planet at a time — leap the chasms, fire your jetpack over the wide ones, and outrun a UFO's tractor beam while a generative score shifts with each world. Every planet is its own neon-and-greenery biome with its own songs, from the low-gravity Moon to a very indignant Pluto. Solo, offline.

FreeNo AdsOfflineEarly Beta
Fidgulator app icon

Fidgulator

A calculator that refuses to calculate.

A fidget toy wearing a calculator costume. Every button does something delightful and wrong — swapping faces, spelling soft little words, bending the colors, playing a mellow note. One secret button reshuffles the entire vibe... if you can find it (it moves every time). Calm by default, mischievous when it feels like it, and effectively never the same twice. Tap around, breathe, enjoy.

FreeNo AdsOfflineFidget Toy
Morse All About It app icon

Morse All About It

The headlines, felt in Morse code.

The day's top five stories, summarized into a short, deliberately neutral briefing — and buzzed to your phone in Morse code. Read the summary and jump to all five sources, or set it to vibrate you the news on the hour (or at hours you pick). Facts first, no slant.

FreeNo AdsUnbiasedIn Development
Night Night Gnomies app icon

Night Night Gnomies

Grow by day. Hide by night.

A cozy 2D garden game. Find seeds, plant and water your crops, and watch them grow — then tuck your little gnome safely into a bush before dark, when pale fanged bunnies and a thieving goblin creep out to raid the garden. Harvest what survives, and slowly make the bare plot your own.

FreeNo AdsCozyIn Development
Deep Gulp app icon

Deep Gulp

Merge the deep. Chase the kraken.

A glowing deep-sea merge game. Drop sea creatures into the tank and watch two of a kind fuse into the next one up the food chain — plankton, clownfish, pufferfish, turtle, all the way to the mighty kraken. Chain big merges, ride the tide, and keep the tank from overflowing. Easy to learn, impossible to put down.

FreeNo AdsEndlessNew
Montón app icon

Montón

Stack tiles. Build montóns. Outbuild everyone.

A 3D digital version of Montón, the stacking board game Josh invented and 3D‑printed with his dad. Drop and stack tiles to build 2×2 “montóns” of your colour, flag them, and outbuild 2–4 players or the computer — with three levels of AI. Rotate and zoom the board to compare your towers. Online play on the way.

FreeNo Ads2–4 PlayersNew
More projects brewing. Stay tuned.