Steam Next Fest is always a blast, as game developers line up to offer up a slice of their upcoming games for players to download and enjoy.

This latest iteration of Steam Next Fest is full of some incredible titles that range across every genre you could imagine, along with some genre combinations you would never even consider. We’ve been playing them all, and we have a list of suggestions to try out before this Next Fest comes to an end.

Dead as Disco screenshot

Here are our picks for some of the best demos to play during Steam Next Fest in June 2025.

The best Steam Next Fest demos

Absolum

The latest fromStreets of Rage 4devs Guard Crush is a demo I got toplay a bit earlyahead of Steam Next Fest, and it’s one I’m incredibly excited for. It’s a roguelike side-scrolling beat-em-up with an interesting story premise and three playable characters, and it’s the first original IP fromTMNT: Shredder’s Revengepublisher Dotemu.

BALL x PIT

Break balls, build your base, and upgrade your characters in yet another roguelite, but this one hashad me addictedsince I first played it. I’m not even sad that demo progress doesn’t carry over, though, because it’s just that addicting.

Phase Zero

The latest in an ever-growing line of classic PS1Resident Evil-likes, and this one skyrocketed to thetop of my listafter playing it. Fixed camera angles, inventory management, puzzle solving, and zombies? Yeah, I am all the way in.

PIGFACE

Sticking with the horror theme,PIGFACEreminds me ofManhuntandHotline Miamiif they got together and made a creepy, retro FPS. Ultraviolent and disturbing, this one combines stealth and gunplay to create something worthkeeping an eye on.

This is simply one of the most stylish and promising game demos I’ve played in some time. It combinesBatman: Arkham-style simplified combat with disco music to create something that’s utterly satisfying, and it’s all soaked in neon for beautiful added effect.

Absolum demo screenshot Steam

Windswept

A duck and a turtle combine to create one of themost charming demosin this Steam Next Fest, brilliantly recreating the feeling and look of classic retro platformers, but with some awesome and interesting new gameplay mechanics as the two animals work together to progress.

Ambrosia Sky

PartPower Wash Simulator, part narrative game, Ambrosia Sky is all potential. You’re tasked with spraying alien fungus while performing last rites for the dead, andplaying the demowas all I needed to generate some genuine interest.

Letters to Arralla

One of the mostunique demos I playedthis week, this one stars a turnip with fat asscheeks delivering mail on an island where everybody else is a caked up fruit or vegetable, too. I’d suggest trying it just to see that it’s actually real.

MIMESIS

Games likeLethal CompanyandREPOgoing popular have created an entirely new subgenre of spooky co-op games, and this one may bethe creepiest. The game will record you and your teammates to then try and make monsters use your voices to mimic you in the game.

BALL x PIT gameplay screenshot

A warning screen at the start of Phase Zero.

PIGFACE “Break Me” screenshot from gameplay

Image via Brain Jar Games, Inc.

A sreenshot from Windswept, showing a duck and a turtle on wooden platforms in front of a watery background.

Ambrosia Sky gameplay screenshot of a room filled with alien fungus

Letters to Arralla dummy thicc

Several players dressed in hazmat suits repairing a wagon in Mimesis.