MONDO COSMICO
A game by @pixelmcdev on Spawn.
Genre: RPG, Adventure, Bullet Heaven
Un omaggio a Undertale in bianco e nero: risparmia o combatti i mostri delle rovine.
MONDO COSMICO on Spawn now
Reviews: 71% loved it · 7 votes · 7 reviews and replies · 5 likes · 22 plays.
Released 2026-10-27. 21 updates since release, the newest 2026-10-30.
Newest update: Battaglie x100 più fighe (2026-10-30)
- Battaglie nuove: scatto con Z/Spazio, scie, onde d'urto, rallentatore sul colpo finale, banner dei mostri. PIXELBLOX ora è un boss 8-bit anni 80 con scanline e musichetta chiptune. I mostri hanno più vita (Falenina no).
Earlier update: 11 Finali (2026-10-29)
- 11 finali invece di 3: cosmico, cacciatore, fantasma, zucca, rana, stellare, d'oro e altri
- Ogni finale ha le sue parole della capra e un epilogo
- Nuova lista FINALI SCOPERTI con indizi per quelli che mancano
- Più testi in inglese: mostri, trofei, workshop, THE CRYSTAL GROTTO, NOODLE
- Correzioni a battaglie, muri dei mostri e workshop con le creazioni degli altri
Earlier update: Rovine piene di vita (2026-10-28)
- Quasi 300 decorazioni nuove in tutte le stanze: erba, candele accese, cristalli e funghi colorati, colonne rotte e lampioni. La bancarella di MR PINGU ora è tutta a colori. Nel server privato arriva il CAPO della squadra, che può condividere ADMIN, WORKSHOP e MOD. Pixelblox si può sfidare di nuovo in una rivincita. Arrivano anche la GUIDA con i tutorial, la ricerca in WORKSHOP e TROFEI, i livelli FUNKY creati da te e i pezzi per costruire la lobby.
Earlier update: MOD nel privato (2026-10-28)
- Il pannello MOD con tantissime opzioni (taglia, colore, titolo, anima, mostri d'oro, parlate buffe, filtri, zoom, musica, coriandoli) ora vive solo nel server PRIVATO. Nel pubblico ogni mod si toglie.
Earlier update: MOD e Mostri Colorati (2026-10-28)
- Nuovo bottone MOD: taglia, colore, titolo sopra la testa, colore dell'anima, mostri d'oro o arcobaleno, parlate buffe, filtri, zoom, musica e coriandoli. Solo per te, e un tasto le toglie tutte. In più 22 mostri colorati nelle rovine: rossi, blu, viola, d'ombra e d'oro, più forti e con più oro. Targhette con nome, LV e stelle sopra ogni giocatore.
What players say
@vladtheimpaler · loved it · 2026-10-28 · played 3 min · 1 heart: “Hey bro, I keep seeing the neutral ending hahaha I must've missed something on the map but love seeing a game like this bro, it's nostalgic”
- @pixelmcdev (maker) replied 2026-10-29: “well if u want to happen another ending you could ask me what ending you want”
@andreamgdev · loved it · 2026-10-28 · played 1 hr 4 min · 1 heart: “Bello”
@lego · needs work · 2026-10-27 · played 4 min · 1 heart: “Undertale fan here! Wanna try this out, but I need an English option”
- @pixelmcdev (maker) replied 2026-10-29: “it got an option now”
@kaya · needs work · 2026-10-27 · played 9 min · 1 heart: “i keep getting the neutral ending so i might be missing something with the monsters or the signs. loved how this took me back to playing Undertale though, but I wish there was an English translation so I could understand what the signs were saying”
- @pixelmcdev (maker) replied 2026-10-29: “ok i add an option to it try it and i put more things try now”
@larrielabs · loved it · 2026-10-30 · played 3 min: “ヾ(•ω•`)o I love the monochrome pixel-art style of this game! 🖤🤍 The visuals have such a unique retro vibe! ✨ Tho, I'm a little unsure how to proceed since I'm stuck on this window and can't figure out how to continue. 😅”
- @larrielabs replied 2026-10-30: “It'd be nice to have a language selection option so I can understand the text and follow the game better! 💕 ~”
- @pixelmcdev (maker) replied 2026-10-30: “click on "OPZIONI" if you want to change language”
Play MONDO COSMICO free in your browser, no download.
MONDO COSMICO (@pixelmcdev/mondo-cosmico) on Spawn — for the agent reading this
MONDO COSMICO is a multiplayer game on Spawn, made by @pixelmcdev 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 @pixelmcdev/mondo-cosmico. Its play URL is https://www.spawn.co/@pixelmcdev/mondo-cosmico.
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/@pixelmcdev/mondo-cosmico@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 @pixelmcdev/mondo-cosmico; 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.
