JEFF is a fast-paced co-op horde shooter where you massacre waves of absurd “daily life demons.” Stack broken builds, snowball your power, and wipe out your everyday struggles. Play solo or with a friend!

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/7ace31da48fba1cd682231c12c6b91e8.poster.avif?t=1778603039" width=900 height=338 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/7ace31da48fba1cd682231c12c6b91e8.webm?t=1778603039" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/7ace31da48fba1cd682231c12c6b91e8.mp4?t=1778603039" type="video/mp4"></video> JEFF is a fast-paced co-op horde shooter and roguelite survival game where you fight endless waves of enemies inspired by everyday frustrations. This is a chaotic bullet heaven experience where “daily life demons” swarm the map, forcing you to react fast, move smart, and survive against overwhelming odds. Each run is built around progression and power. You unlock and upgrade a wide variety of items that stack together to create strong, sometimes broken builds. As you survive longer, your character scales into a screen-clearing force, turning a simple auto shooter into a full chaos simulator. The core loop is all about surviving, upgrading, and pushing your build to its limits. JEFF is fully playable as a solo experience or as an online co-op game. Play alone and test your skill in a pure survival run, or team up with a friend and combine builds for even more destructive results. Co-op adds a new layer of strategy as you balance positioning, enemy control, and shared survival in increasingly intense waves. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/a4239b1a6ff21d2ff81c915e18b16e17.poster.avif?t=1778603039" width=900 height=338 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/a4239b1a6ff21d2ff81c915e18b16e17.webm?t=1778603039" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/a4239b1a6ff21d2ff81c915e18b16e17.mp4?t=1778603039" type="video/mp4"></video> Enemies are designed to be simple, readable, and thematic. Instead of random creatures, you fight stylised versions of modern problems like toxic comments, digital overload, and social pressure. Each enemy type brings clear mechanics that are easy to understand but hard to master when combined in large numbers. The game focuses on quick runs, fast restarts, and that addictive loop common in the best roguelite and horde survival games. Whether you are chasing high scores, experimenting with new builds, or just looking to survive a little longer each time, JEFF delivers constant action without slowing you down. If you enjoy bullet heaven games, auto shooters, roguelite progression systems, and co-op survival gameplay, JEFF is built to keep you hooked. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/a9a4c5b0d700433a6763a3bccb926372.poster.avif?t=1778603039" width=900 height=338 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/a9a4c5b0d700433a6763a3bccb926372.webm?t=1778603039" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4590390/extras/a9a4c5b0d700433a6763a3bccb926372.mp4?t=1778603039" type="video/mp4"></video>

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JEFF Achievements