Play the demo Prologue chapter of Sea of Tranquility. Witness the final moments of moon colonization by humanity.

Play the demo Prologue chapter of Sea of Tranquility, underlying some of the events before the main game. Witness the final moments of moon colonization by humanity as you prepare for you own departure.<ul class="bb_ul"><li>Witness the last moments of moon colonization in the Prologue chapter of Sea Of Tranquility and get a glimpse of why the Moon is stranger than earlier thought.</li><li>Explore different levels with unique content varying from an observatory station, warehouse section and the silent planes of the Moon in your spacesuit with as you evacuate yourself.</li><li>Enjoy various puzzles to test your wits along with esoteric moon ambiance.</li><li>The demo autosaves your progress between the levels.</li></ul>

Sea of Tranquility Demo

Escape your doomed mission from the Moon. Explore a vast open-world landscape and evade its dangers. Land shuttles, solve puzzles, control cameras, hack systems, uncover mysteries, and roam tranquil plains in your Rover. Survive the mission. Make your escape.

<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/02651dd3f6ff90f9345873919d52e2a0.webp?t=1767708525" width=640 height=54 />In the near future, government and private agencies launch manned moon missions.You are an astronaut on a routine rotation at an underground base. As you prepare to relieve your colleague, nothing goes as planned. The Moon is not ready for us. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/6d46710db967d8ceae6659d8e44ff78d.poster.avif?t=1767708525" width=640 height=360 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/6d46710db967d8ceae6659d8e44ff78d.webm?t=1767708525" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/6d46710db967d8ceae6659d8e44ff78d.mp4?t=1767708525" type="video/mp4"></video>The journey spans serene moon plains to intense, action-packed tight spots—from cold corridors to vast open-world landscapes.As you piece together your escape, explore optional paths and discover the Moon isn’t as abandoned as it seems. Your trusty rover will carry you across the wastelands until it’s time to go on foot and explore exciting locations - from crashed vessels to abandoned research facilities - at your own pace.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/837f0f814ce01bbac9ef6e3014d34b99.poster.avif?t=1767708525" width=640 height=360 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/837f0f814ce01bbac9ef6e3014d34b99.webm?t=1767708525" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/837f0f814ce01bbac9ef6e3014d34b99.mp4?t=1767708525" type="video/mp4"></video>On your journey, many courses of action are required. Solving puzzles until you need to dodge a war missile, trawling through cramped corridors until you have full freedom to explore the vast peaceful surroundings - but dangerous things remain forgotten beneath the tranquil planes.On your journey, you will travel vast distances, land shuttles, help new acquaintances, navigate through caverns with a radar device, hack cameras, propel yourself across a valley and mess with explosives. You will gain many devices but the most important tool you have are your wits to get you off the rock!Sea of Tranquility is a first-person sci-fi adventure that combines open world exploration, puzzles and action.<h2 class="bb_tag" >Key Features:</h2><ul class="bb_ul"><li>Various puzzles - land shuttles, control cameras, optimize energy flows and hack numerous devices</li><li>Fast paced action - outsmart deadly security systems, avoid a war missile - not everything is abandoned on the Moon</li><li>Vast Moon landscapes you can explore on foot and with a vehicle open world style</li><li>Non-linear progression – explore at your pace, find upgrades, and unlock alternate endings</li></ul><img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3784750/extras/992a11f6f1e907d7edba39c217f2a305.webp?t=1767708525" width=640 height=54 />