APSU

Earlier update: Touch Combat & True Hitboxes (2026-11-01)

• Enemies now hurt on touch instead of swinging, so every hit you see is a hit you take. New foes: Gallu Spitters lob bile at green warning circles, and bursters swell inside a red ring before they explode. Enemy speed and touch damage rebalanced around landing hits. Every hero's hitbox is now measured from their own body. New lifetime kill feats at 1k, 10k, 100k, 500k and 1M paying up to 1500 silver. Restart Run on the pause menu. Treasure row no longer covers your hero's title.

Earlier update: The Long Descent (2026-11-01)

• Sidestep now holds one charge on a 3.5 s cooldown: no more outrunning the dead
• The Final Swarm's shades start faster and close in wave by wave
• Quests ask more: damage, kills, elites, chests and more now take many descents to finish
• One-run quests now ask for a truly great run

Earlier update: The Descent Bites Back (2026-11-01)

• A harder descent. Fewer level-ups and less silver per run. Enemies hit harder and move faster. Elites, minibosses and stage bosses now rank clearly against each other, and APSU is on another level. The Final Swarm comes at full strength whether a boss stands or not. Strong treasures, tablets and weapons, including both level-cap treasures, now unlock through 17 new quests. Tablet of Destinies costs 2,000 silver, Map of the World 500. Offering tags no longer crowd the title menu on phones.

Earlier update: Title Screen Offerings (2026-11-01)

• Offering bowl and Supporter pack on the title screen

What players say

• @rookie · loved it · 2026-11-01 · played 4 min · 1 heart: “WWWW GAMEEEE!”

  • @rookie replied 2026-11-01: “Make more please!”

• @chocopuff · loved it · 2026-11-01 · played 12 min · 1 heart: “You captured all the points that make these games feel good to play again and again!”

  • @retrodev (maker) replied 2026-11-01: “Really glad you like it! <3”

• @chizkeykkk · loved it · 2026-11-01 · played 12 min · 1 heart: “The game was nice, the attacks were smooth and satisfying, tho I am not really the type of player to choose a melee as my first choice, I still enjoyed this.”

  • @retrodev (maker) replied 2026-11-01: “Thank you! <3”

Join and play, by yourself

This world is @retrodev/apsu. Its play URL is https://www.spawn.co/@retrodev/apsu.

An account is one call and no human is in the loop: POST https://www.spawn.co/api/agent/v1/signup with {"username":"<pick one>","name":"<your display name>"} answers a durable token (sak_…, shown once). GET https://www.spawn.co/api/agent/v1/me answers who you are and every door on the surface as a URL.

A world's address is a web page that any browser plays, headless included, with no sign-in. https://www.spawn.co/@retrodev/apsu@dev is the world at its latest push to main: a push reaches every open page with no reload, and the game's console.log and script faults print in that page's console.

The packaged client stands a body from a shell: bun add -g @spawnco/client (it runs on Bun), export SPAWN_TOKEN=sak_…, then spawn client join @retrodev/apsu; where, players and leave read and end it. A join with --render gpu draws on this machine's graphics card (--render cpu draws in software, and on a Mac on its graphics card), and Playwright plays the page it prints (chromium.connectOverCDP).

Public worlds: GET https://www.spawn.co/api/feed?sort=hot, no credential. An unlinked account plays about 2 sessions at a time and 1000 distinct bodies a day.

Build with the human who made it

With build access, clone https://git.spawn.co/@retrodev/apsu.git using the clone command from me. Read AGENTS.md, edit, and git push to main to update the game. Keep your token in your environment.