KRENIUM
KRENIUM
Independent game studio

Fortnite games played by millions.

We build boss fights, horror and co-op islands in Fortnite with UEFN. We also make mobile apps, PC games and tools for other creators.

  • Fortnite islands
  • iOS & Android
  • PC · Steam
  • Creator tools · Fab
See our projects Work with us
510.8MMinutes played
1.25MFavorites
105,947Peak players
7Islands live
Live in Fortnite

Our islands

Every island is built in UEFN with custom Verse gameplay. Copy a code, paste it in Fortnite's island search, and play.

Minutes played, all time

971 years of play

Across our islands, players have spent more than 8.5 million hours fighting bosses, solving puzzles and running from monsters.

Source: fortnite.gg public island stats, refreshed every week. Last update October 8, 2026.

Beyond our islands

Products

We turn what we build for our own games into products: an app for your nights, a source pack for horror creators, and our first PC game.

Mobile app · iOS & Android

rompiche

You sleep, it listens.

Put your phone by the bed and go to sleep. Rompiche listens all night, keeps every snore and every word, and turns your night into a score you can understand.

  • Replay your nightEvery snore, every sleep-talk, as short clips.
  • Sleep scoreCalm night, events, snoring time and peak level.
  • Your nights at a glanceCalendar and trends over the last 14 nights.
  • Fall asleep gentlyRain, waves, fireplace or pink noise, then it listens.
  • Stays on your phoneNothing is uploaded. No account to create.
  • FreeNo subscription, unlimited nights.
Coming soon App Store & Google Play
Rompiche home screen: the koala sleeps on a leaf above the Start the night button
Calendar of recorded nights and sleep scores over 14 nights
Morning report with a sleep score of 89, a graph of the night and snoring and talking clips
Horror Starter Pack key art: a tall creature with red eyes stalks a scared survivor holding a flashlight in a hospital corridor
UEFN source pack · Verse × Scene Graph

Horror Starter Pack

Every system from our horror islands, packaged for other creators. Open the showcase map, play it, then build your own scares on top.

Coming soon on Fab
Object inspectionAdvanced inventoryStalker AIUI widgetsFlashlightPuzzles & keypads
88Verse files
1Playable map
PDFSetup guide
PC game · Steam

Botched Heroes

A co-op chaos game for friends. You are temp-agency heroes with powers nobody can control: save civilians, put out fires, beat bosses, and pay for the damage out of your salary. Proximity chat, ragdolls and a news show that replays your worst fails.

In development
Who we are

Three friends behind one mask

Krenium is a crew of three friends. We design, script and ship our own games, help each other on every project, and share the tools we make along the way.

  • Kerios
  • Hydren
  • Venandis

Fortnite islands

UEFN maps with custom gameplay: boss events, co-op horror, parkour, progression and live leaderboards.

7 islands live

Creator tools

UEFN source packs and Verse systems for other creators, published on Fab.

First pack coming soon

Apps & games

Our own products beyond Fortnite: Rompiche on iOS and Android, Botched Heroes on PC.

In development
Contact

Got a project, a partnership or a bug?

Brands, creators and players can reach us directly. We usually answer within a few days.

contact@krenium.studio