Become a swarm. Think as one. Mutate. Multiply. Overwhelm. A roguelite auto-shooter built around hive-mind powers — craft broken builds, survive the chaos, crush enemies with sheer collective force! All to a thumping trance-techno soundtrack and neon-glow visuals.

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/b90d6c26cf328547aeb4df23b0827a2b.poster.avif?t=1764418502" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/b90d6c26cf328547aeb4df23b0827a2b.webm?t=1764418502" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/b90d6c26cf328547aeb4df23b0827a2b.mp4?t=1764418502" type="video/mp4"></video><h2 class="bb_tag" >SWARM SURVIVORS</h2>In GREX, you don’t play a hero — you command a living swarm.Hundreds of Grexlings move, fight, and sacrifice themselves as one organism.You do things no single character could ever pull off.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/99b9bdc87ab2e9682a082def938bbc02.poster.avif?t=1764418502" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/99b9bdc87ab2e9682a082def938bbc02.webm?t=1764418502" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/99b9bdc87ab2e9682a082def938bbc02.mp4?t=1764418502" type="video/mp4"></video><h2 class="bb_tag" >CONTROL THE UNCONTROLLABLE</h2><ul class="bb_ul"><li>Swarm AI Combat – Your Grexlings dodge, chase, collide, and intercept automatically.</li><li>Body as Weapon – Ram enemies, surround them, shred them, overwhelm them.</li><li>Mass Sacrifice &amp; Rebirth – Lose dozens, rebuild instantly, and come back stronger.</li><li>Shape-Shifting – Use different shapes and formations to survive.</li></ul><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/b32f9915507d72e61bd4ec3d12cfa1f1.poster.avif?t=1764418502" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/b32f9915507d72e61bd4ec3d12cfa1f1.webm?t=1764418502" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/b32f9915507d72e61bd4ec3d12cfa1f1.mp4?t=1764418502" type="video/mp4"></video><h2 class="bb_tag" >CRAFT YOUR PERFECT SWARM</h2><ul class="bb_ul"><li>Genes – Combine gene types to create unique Grexling behaviors.</li><li>Merging – Fuse genes into higher tiers for absurd power jumps.</li><li>Passive Items – Heavy bonuses with real trade-offs.</li><li>Upgrades – Level up, boost stats, and evolve your swarm’s instinct.</li><li>Digging – Tear through the arena floor to find healing and diamonds.</li></ul><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/288c6240c1132f156e98eed5116f464c.poster.avif?t=1764418502" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/288c6240c1132f156e98eed5116f464c.webm?t=1764418502" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3526610/extras/288c6240c1132f156e98eed5116f464c.mp4?t=1764418502" type="video/mp4"></video><h2 class="bb_tag" >ROGUELITE PROGRESSION</h2><ul class="bb_ul"><li>Unlock permanent skill tree upgrades.</li><li>Return stronger.</li><li>Break the game on purpose.</li></ul><h2 class="bb_tag" >DISCOVER. MUTATE. REPEAT.</h2><ul class="bb_ul"><li>New swarm species that changes playstyle.</li><li>Rare items and exotic genes.</li><li>Endless builds that change how your entire organism behaves.</li><li>(WIP — more on the way.)</li></ul><h2 class="bb_tag" >FINAL CHALLENGE: &quot;Vanilla Mode&quot;</h2><ul class="bb_ul"><li>Reset Skill Tree &amp; upgrades.</li><li>Start from zero.</li><li>Defeat the final boss in pure vanilla chaos.</li></ul><h2 class="bb_tag" >MUSIC, POWER, VFX</h2>GREX is powered by a thumping trance-techno soundtrack and glowy neon VFX — swirling trails, pulsing lights, and particle storms that turn your swarm into a cosmic supernova.GREX blends bullet-heaven chaos with deep buildcraft - but the star is your swarm. Learn it. Shape it. Weaponize it.Can you control the chaos you create?Have fun Swarming, Mike

GREX Demo 2.0

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/b90d6c26cf328547aeb4df23b0827a2b.poster.avif?t=1771947097" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/b90d6c26cf328547aeb4df23b0827a2b.webm?t=1771947097" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/b90d6c26cf328547aeb4df23b0827a2b.mp4?t=1771947097" type="video/mp4"></video><h2 class="bb_tag" >SWARM SURVIVORS</h2>In GREX, you don’t play a hero — you command a living swarm.Hundreds of Grexlings move, fight, and sacrifice themselves as one organism.You do things no single character could ever pull off.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/99b9bdc87ab2e9682a082def938bbc02.poster.avif?t=1771947097" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/99b9bdc87ab2e9682a082def938bbc02.webm?t=1771947097" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/99b9bdc87ab2e9682a082def938bbc02.mp4?t=1771947097" type="video/mp4"></video><h2 class="bb_tag" >CONTROL THE UNCONTROLLABLE</h2><ul class="bb_ul"><li>Swarm AI Combat – Your Grexlings dodge, chase, collide, and intercept automatically.</li><li>Body as Weapon – Ram enemies, surround them, shred them, overwhelm them.</li><li>Mass Sacrifice &amp; Rebirth – Lose dozens, rebuild instantly, and come back stronger.</li><li>Shape-Shifting – Use different shapes and formations to survive.</li></ul><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/b32f9915507d72e61bd4ec3d12cfa1f1.poster.avif?t=1771947097" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/b32f9915507d72e61bd4ec3d12cfa1f1.webm?t=1771947097" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/b32f9915507d72e61bd4ec3d12cfa1f1.mp4?t=1771947097" type="video/mp4"></video><h2 class="bb_tag" >CRAFT YOUR PERFECT SWARM</h2><ul class="bb_ul"><li>Genes – Combine gene types to create unique Grexling behaviors.</li><li>Merging – Fuse genes into higher tiers for absurd power jumps.</li><li>Passive Items – Heavy bonuses with real trade-offs.</li><li>Upgrades – Level up, boost stats, and evolve your swarm’s instinct.</li><li>Digging – Tear through the arena floor to find healing and diamonds.</li></ul><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/288c6240c1132f156e98eed5116f464c.poster.avif?t=1771947097" width=1170 height=658 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/288c6240c1132f156e98eed5116f464c.webm?t=1771947097" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3415870/extras/288c6240c1132f156e98eed5116f464c.mp4?t=1771947097" type="video/mp4"></video><h2 class="bb_tag" >ROGUELITE PROGRESSION</h2><ul class="bb_ul"><li>Unlock permanent skill tree upgrades.</li><li>Return stronger.</li><li>Break the game on purpose.</li></ul><h2 class="bb_tag" >DISCOVER. MUTATE. REPEAT.</h2><ul class="bb_ul"><li>New swarm species that changes playstyle.</li><li>Rare items and exotic genes.</li><li>Endless builds that change how your entire organism behaves.</li><li>(WIP — more on the way.)</li></ul><h2 class="bb_tag" >FINAL CHALLENGE: &quot;Vanilla Mode&quot;</h2><ul class="bb_ul"><li>Reset Skill Tree &amp; upgrades.</li><li>Start from zero.</li><li>Defeat the final boss in pure vanilla chaos.</li></ul><h2 class="bb_tag" >MUSIC, POWER, VFX</h2>GREX is powered by a thumping trance-techno soundtrack and glowy neon VFX — swirling trails, pulsing lights, and particle storms that turn your swarm into a cosmic supernova.GREX blends bullet-heaven chaos with deep buildcraft - but the star is your swarm. Learn it. Shape it. Weaponize it.Can you control the chaos you create?Have fun Swarming, Mike