Antediluvial: Yalroc Island is an isometric action-adventure inspired by 90s classics like Landstalker and Dark Savior, with the looping structure of Majora's Mask. You play a rookie soldier of a cruel empire, sent alone to an island that the waters swallow a little more every hour. Over three days, the tide redraws the map: paths vanish, others open up. Freeze, rewind and fast-forward time to figure out what's really going on, and pick a side.

You serve the Empire

You're a fresh recruit of Empress Keranna's personal guard, sent alone to Yalroc Island for your first real mission. Scout the place, find out why its inhabitants refuse to obey, and report back.

Nobody told you about the flood that will wipe the island off the map in three days. Nobody told you what the Empire is really looking for here.

And nobody warned you that you'd start questioning which side you're actually on.

Three days, one flood, and a time loop

Every cycle starts the same morning: the same villagers going about their routines, the same sealed orders in your pocket. But the water won't wait. It rises hour after hour, reshaping the island under your feet. A path you walked on day one is underwater by day three. And where the water climbs high enough, you can swim up to heights you could never reach otherwise.

What changes is what you know, and what you carry. Equipment, items and knowledge stay with you from one loop to the next. Restart whenever you want. The island becomes a puzzle to solve in space as much as in time, until an ending nothing had hinted at.

Time is yours to bend

Freeze the world to dodge a fatal blow, cross a moving platform, or take a moment to read the situation.

Rewind a few seconds to undo a fall, study an enemy's pattern, or pull yourself out of a corner you didn't see coming.

The day is dragging on, and you'd rather skip straight to the first night, when something terrible happens at the inn? You can fast-forward time at your own pace.

Fight, explore, solve

Isometric combat against a vicious bestiary
Dungeons built around environmental puzzles that lean on your time powers
Platforming sequences with that old-school 90s bite
An open island to roam, no loading screens between zones

Soldier, traitor, or something else?

You start the game as an Imperial. You can stay one.

You can also start asking questions. Talk to the villagers who watch you with suspicion. Read the sealed orders you weren't supposed to open. Find out what's buried under Yalroc, and why the Empire wants it badly enough to send you here. All of it, before the sea swallows the answers along with the island.

By the third day, you'll have to decide who you're really working for. Yourself, maybe, included.

90s aesthetic

Antediluvial could be the Landstalker sequel that came out on 32-bit: pixel art, low-poly geometry, atmospheric synth music. An optional custom CRT shader is included if you want the full tube TV experience, with scanline and clean modes for anyone who prefers a sharper image.

Steam Deck ready.

Antediluvial : Yalroc Island (1643840)

Progress