You've been stranded by your company in a section of the facility known as "threshold sector". You'll have to find weapons, meds and equipment to survive and try to escape the complex. But be as careful as possible: everything down here wants you dead.
We are not affiliated with IsThereAnyDeal.
Threshold sector is an athmospheric stealth FPS with procedurally generated levels. Explore the dark hallways and twisted rooms of a mysterious complex, gather loot and equipment to improve your chances of survival, complete objectives, avoid traps and most importantly, find a way out.
Survive the facility Everything down here wants you dead. From mutated creatures to weird anomalies to the facility structure itself. Experience random power outages, spreading toxic gas, unsettling semi-alive matter, disease infected rooms and much more... and much worse. Stay on your toes Death is always one false step away. The complex is flooded with traps and every wrong move could mean more than just a scratch: the whole facility can hear you and will get back at your noise and mistakes. Find the truth No contact with the outside world, noone is there for you and you don't even know where "there" is. The company you worked for just left you here to rot. You need to find out why, what happens down here and how to get out.
This demo version contains a single handmade level, a few weapons and most of the core systems. Think of it as a proof of concept, with a focus on testing the main mechanics and basic gameplay loop. In the future a second demo will be released, with more features, systems and content, which will aim at finding a balance in the overall experience. The last step in the development of Threshold Sector will be the full 1.0 release, with the complete range of features and content currently planned. Wishlist to keep updated.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.
Threshold sector is an athmospheric stealth FPS with procedurally generated levels. Explore the dark hallways and twisted rooms of a mysterious complex, gather loot and equipment to improve your chances of survival, complete objectives, avoid traps and most importantly, find a way out.
Survive the facility Everything down here wants you dead. From mutated creatures to weird anomalies to the facility structure itself. Experience random power outages, spreading toxic gas, unsettling semi-alive matter, disease infected rooms and much more... and much worse. Stay on your toes Death is always one false step away. The complex is flooded with traps and every wrong move could mean more than just a scratch: the whole facility can hear you and will get back at your noise and mistakes. Find the truth No contact with the outside world, noone is there for you and you don't even know where "there" is. The company you worked for just left you here to rot. You need to find out why, what happens down here and how to get out.
This demo version contains a single handmade level, a few weapons and most of the core systems. Think of it as a proof of concept, with a focus on testing the main mechanics and basic gameplay loop. In the future a second demo will be released, with more features, systems and content, which will aim at finding a balance in the overall experience. The last step in the development of Threshold Sector will be the full 1.0 release, with the complete range of features and content currently planned. Wishlist to keep updated.
You've been stranded by your company in a section of the facility known as "threshold sector". You'll have to find weapons, meds and equipment to survive and try to escape the complex. But be as careful as possible: everything down here wants you dead.
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.
