Alvios

AlviosAn independent game studio

Adventures are better in good company.

We make handcrafted co-op and competitive games — spellbooks for four, archery for your whole party, and marbles for a crowd.

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What we believe

The best moments in games are the ones you retell afterwards — the clutch save, the last-second win, the marble wearing a cowboy hat. We build games for those moments, and for the people who share them.

  • 1–4players in every Vellum run
  • 3,072positive Steam reviews across our games
  • 2014the year our first release shipped

The library

Stories we’ve written together.

A Vellum party battles the boss Czar Khasm in a forest arena, hurling dice and ink

No. 01

Vellum

A co-op literary roguelike. Team up with pen-pals or dive in solo, wield one of six colorful Signature Inks, and rewrite the rules of each Tome to save the Illuminated Library.

Players
1–4, online co-op
Runs
Under 30 minutes
Platform
Steam, 2025
Visit Vellum on Steam
A giant soccer-ball marble bursts through a crowd of costumed marbles — a smiley face, a burger, a beach ball — under GOAL! banners in Marble It Up! Ultra

No. 02

Marble It Up! Ultra

Precision marble platforming from original developers of Marble Blast Ultra and Tribes. Chase your friends’ records through the campaign, or face them head-on in five multiplayer modes.

Players
Up to 8 online on Switch
Community
200+ Workshop levels
Platforms
Nintendo Switch, Steam

Nintendo Switch Steam

A hooded QuiVr archer on a rocky ledge watches an explosion scatter enemies across a desert canyon

No. 03

QuiVr

The original VR archery game, developed alongside the HTC Vive. Grab a bow and some friends, defend the keep, and chase the weekly leaderboards on a fresh map every week.

Players
Drop-in co-op & PvP
Extras
Spectator camera
Platforms
SteamVR, PlayStation VR

SteamVR PlayStation VR

Also on the shelf

Marble It Up: Mayhem! key art: a chrome marble on a neon space track between two angry red blocks 2019 Marble It Up: Mayhem! Apple Arcade, with Blast, Gem Hunt, and Steal the Crown online. A QuiVr Vanguard archer with a glowing bow stands on a snowy rock above a frozen canyon 2018 QuiVr Vanguard A bite-sized intro to VR archery, with drop-in multiplayer. Hooded archers with glowing masks in QuiVr for PlayStation VR 2019 QuiVr for PS VR Our archery game, reimagined for PlayStation VR’s tracking. A rendered planet glowing against black space in Planetary Weather 2014 Planetary Weather A Unity showcase of atmospheric scattering on iOS.

Tide chart

Eleven years of high tides.

  1. Planetary Weather brings atmospheric scattering and space rendering to iOS.

  2. QuiVr leaves Steam Early Access.

  3. Marble It Up! and QuiVr Vanguard launch on Steam, three days apart.

  4. QuiVr arrives on PlayStation VR.

  5. Marble It Up: Mayhem! rolls onto Apple Arcade.

  6. Marble It Up! Ultra lands on Nintendo Switch.

  7. Vellum opens its pages on Steam.

How we work

Small details, shared joy.

Feel first

A bowstring should have tension. A marble should have weight. Our Marble It Up! work pairs custom physics and rendering with a smooth 60 fps, from Apple TV to Nintendo Switch.

Better together

Drop-in co-op, cross-platform play, and a cinematic spectator camera — so nobody waits on the sidelines, not even the friends who are just watching.

Made to last

Weekly maps, weekly challenges, and more than 200 community-made levels keep every lobby fresh long after launch day.

Write to us

Send a note in a bottle.

Pitch us a project, tell us about your best run, or simply say hello. We’d love to hear from you.

support@alvios.com