If you thought a relaxing day at the waterpark couldn’t get any more chaotic, think again. Lazy River, the wacky co-op waterpark zombie survival FPS from independent developer Mike Boxleiter (co-creator of the hit social deduction board game Secret Hitler and mobile classic Solipskier), is cranking up the heat!

First showcased during Day of the Devs at Summer Games Fest 2026, Lazy River has just dropped a fresh trailer revealing a brand-new Desert Biome alongside a beach wagon’s worth of insane new features.

What is Lazy River?

For those who missed its initial debut, Lazy River takes place aboard Water Station One—proudly billed as the galaxy’s most unregulated waterpark. The premise is as hilarious as it is absurd: someone peed in the pool, mixing human urine with murky extraterrestrial space water and turning the park’s guests into bloodthirsty, water-vulnerable zombies.

To survive and reach the park exit, you and up to three friends must scavenge parts, build a custom escape vessel, and blast through hordes of infected patrons and rogue security robots.

Barefoot in the Dunes: The New Desert Biome

The latest trailer gives us a deep dive into the Desert Biome, proving that even when the water runs low, the action doesn’t dry up!

Here is everything packed into today’s update:

• From Floating to Offroading: You aren’t tied to the water anymore! The Desert Biome swaps lush rivers for dusty dunes, introducing tyres and air fan engines so you can take your makeshift rafts off-road. Just watch out for prickly, innertube-popping cacti!
• Sand-Swimming Zombies: Think you’re safe on dry land? Think again. Infected patrons can now swim through shifting sediment like terrifying land-sharks. Keep your eyes peeled for movement beneath the sand.
• 5 New Water Guns (14 Total Arsenal): Five brand-new soaking weapons join the fight, bringing the full arsenal up to 14 distinct water guns—ranging from classic hand-pumped blasters to heavy-duty battery-powered pressure washers. Waterlog the zombies until they burst!
• Upgraded Floating (and Offroading) Fortresses: Turn a simple dinghy into an absolute unit. You can now build with zombie-proof reinforced walls, turrets, tethered sails, rudders, bathtubs (for filling water balloons on the fly!), and even grills to cook meals on the go.
• Real Water & Weight Physics: Don’t get too greedy with your upgrades! Lazy River features a full physics simulation, meaning weight distribution and buoyancy matter. Overload one side of your raft with turrets, and you just might capsize.

When Can You Play?

If you’re attending PAX West 2026 in Seattle from September 4–7, you’re in luck! A hands-on playable demo featuring the new Desert Biome will be debuting at the PAX Rising booth.

For everyone else, Lazy River is officially set to hit Steam Early Access in 2027. You can head over to Steam right now to add it to your wishlist and start planning your ultimate zany waterpark escape raft.

What’s your dream waterpark survival build? Let us know in the comments below!

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