I took a look!
A downloadable game for Windows
You are a spelunker who fell through a rock chimney into a dark cave infested with...aliens! Good thing you brought your headlamp and infinite-ammo grenade launcher, like you always do when exploring caves! You quickly find you are not the first, and the last guy to fall in left charcoal markings to navigate by. Essentially one ten-minute level with boss at the end. End screen shows stats and saves best stats for comparison, and lets you restart game or quit. No saved game...if you die you restart. Use Pause menu to quit game (or Alt-F4).
Key bindings are mostly like the Unreal Engine 4 First Person Template:
Jump: space bar or game pad face button bottom or motion controller (L) trigger
Fire: left mouse button or gamepad right trigger or motion controller (R) trigger
Reset VR: (untested with VR/HMD!) R or Motion Controller (L) Grip1
Pause: Escape or Pause or Global Pause or P, any key resumes or click Resume (or Quit).
Move Forward: W or Up arrow or Right mouse button or Motion controller (L) thumbstick or gamepad left thumbstick Y axis
Move Backward: S or Down arrow or Motion controller (L) thumbstick or gamepad left thumbstick Y axis
Move Right: D or Gamepad left thumbstick X axis or Motion controller (L) thumbstick
Move Left: A or Gamepad left thumbstick X axis or Motion controller (L) thumbstick
Turn Rate: Gamepad right thumbstick X axis or left or right arrow
Turn: Mouse X
Look Up Rate: Gamepad Right Thumbstick Y Axis
Look Up: Mouse Y
Move Up (swim mode): Space bar (same as jump)
Move Down (Swim mode): C (same as crouch)
Unzip the directory (WindowsNoEditor) somewhere, then in the directory, run the executable Twisty_Passages.exe; For PC/Windows 10 64 Bit