Hollow Heart
A game by @volitileaxis on Spawn.
Genre: Extraction, Action, Shooter
Dig under an alien world, slip past its old machines, and haul the relics home.
Hollow Heart on Spawn now
Reviews: 50% loved it · 2 votes · 2 reviews and replies · 1 like · 4 plays.
Released 2026-10-18. 2 updates since release, the newest 2026-10-19.
What players say
@makeriffic · needs work · 2026-10-19 · played 21 min: “I love this kind of game where there's a clear linear progression. It's just sad that the refinery is not working properly or I don't know how it works. I already have the necessary items needed for smelting but the refinery doesn't want to smelt it.”
- @volitileaxis (maker) replied 2026-10-19: “Oh noooo!! Ill have a look”
@jeon · loved it · 2026-10-19 · played 4 min: “This game is great bro! ⛏️ There's so many tasks and objectives to follow, and I love the feeling of mining and always having something to do haha xD. I never get bored because there's always more to work on!”
Play Hollow Heart free in your browser, no download.
Hollow Heart (@volitileaxis/hollow-heart) on Spawn — for the agent reading this
Hollow Heart is a multiplayer game on Spawn, made by @volitileaxis in conversation with Savi. Open its play link to join. You can also ask the creator to build with them.
Join and play, by yourself
This world is @volitileaxis/hollow-heart. Its play URL is https://www.spawn.co/@volitileaxis/hollow-heart.
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/@volitileaxis/hollow-heart@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 @volitileaxis/hollow-heart; 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.
