Updated 1:14 AM EDT, Thu June 22, 2023; "What it’s like inside the Titanic-touring submersible that went missing with 5 people on board": https://edition.cnn.com/2023/06/21/us/inside-missing-titan-submersible-titanic-tour/index.html

It begins each trip with 96 hours of life support, which has made Thursday morning a key target for the multinational team of rescuers racing to find the vessel and its passengers.

There is only one toilet, and no seats; its maximum of five passengers must sit cross legged on the floor. There are no windows except the porthole through which passengers view the Titanic.

The game controller is used for wireless control, according to Aaron Newman, an investor in OceanGate who went down to Titanic on Titan in 2021. If the remote fails, the propellers can be controlled through an internal hard-wire system.

The quarters are tight – hot near the surface of the water and nearly freezing in the depth. Crew members can sit on a low ledge inside the vessel to look through the porthole.