Room 404 repeats. Identify anomalies, file reports, and stay alive—some anomalies might hurt you. Nurture the plants, listen to the overlord, end the loop, and unlock multiple unique endings.

<ul class="bb_ul"><li>6 unique endings</li><li>More than 40 anomalies</li></ul>You are a botanist participating in Experiment 404, your goal is to complete 12 sessions and report any unusual activities. Pay close attention to your surroundings and stay alert, or the looming overlord might decide to end the experiment early.<h2 class="bb_tag" >Gameplay</h2>Anomalies may appear in Room 404. Spot them. Report them. Fail—and the chamber will punish you in ways most unnatural.Remove weeds from the plants and dispose of them properly to satisfy the looming overlord watching your every move through the cameras.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3990440/extras/8c7cb6e561d7ef63887cf330c198ca74.poster.avif?t=1771402707" width=600 height=278 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3990440/extras/8c7cb6e561d7ef63887cf330c198ca74.webm?t=1771402707" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3990440/extras/8c7cb6e561d7ef63887cf330c198ca74.mp4?t=1771402707" type="video/mp4"></video><h2 class="bb_tag" >Replayability</h2>No two playthroughs are the same. Experiment 404 branches into 6 different endings, each shaped by your accuracy in spotting anomalies and the choices you make under pressure. Every action is logged by the unseen observer, deciding whether you earn freedom, revelation… or something far, far worse.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3990440/extras/fa74410d8ecae3595f8aaab36937fef1.poster.avif?t=1771402707" width=600 height=278 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3990440/extras/fa74410d8ecae3595f8aaab36937fef1.webm?t=1771402707" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3990440/extras/fa74410d8ecae3595f8aaab36937fef1.mp4?t=1771402707" type="video/mp4"></video>

Good Game Database

Experiment 404 Achievements