KSP - Salyut 7
This video depicts aspects of Salyut 7 using Kerbal Space Program and a number of mods, including Tantares, Scatterer, Chatterer, PlanetShine, and others.
The first generation of space stations were limited by the fact that they couldn't be refueled nor resupplied -- incoming expeditions had to bring in their own supplies. This limited the lifetime of each station, the duration of each expedition, and number of expeditions. This changed when Salyut 6 became the first second-generation space stations and the Progress spacecraft became the world's first cargo spacecraft. The station stayed in orbit more than twice as long as the previous record-holder and was occupied for nearly 700 days.
Salyut 7, launched on April 19th 1982, was incredibly similar to Salyut 6 and extended its records even further along with encountering incredible difficulties (and recoveries) along the way. Its' first major issue was a series of leaks in the aft fuel tank -- first spotted in September 1983 and finally repaired over the course of six EVAs in April 1984.
This was eventually overshadowed when Salyut 7, while not occupied, lost all contact with ground control in February 1985. The new crew arriving in June came upon an entirely powerful space station and had to handle an approach and docking completely manually. The station was determined to be completely dead and the interior covered in frost -- several days of repairs and battery replacements started a process of slowly bringing the station back to life. The station took two months to completely return to normal and was considered one of the most impressive feats of in-space repair -- experience that would help with future space stations.
The space station also played host to the TKS spacecraft -- which had docked at the end of Salyut 6's life -- one with a complete configuration and one with numerous systems replaced with instruments and experiments. The FGB cargo block of the TKS was able to haul nearly ten times the amount of supplies of the Progress and with a complete configuration it was able to bring back 350 kg worth of experiment results via its VA capsule.
Soyuz T-15 became the first and, to date, only spacecraft to visit two space stations in one mission when it first docked with the fledgling Mir Core Module then traveled to Salyut 7 where it stayed for 50 days. It retrieved various experiments and other supplies from Salyut 7 before once again returning to Mir.
There had been plans to continue to visit Salyut 7 either by manned TKS spacecrafts or by the Buran space shuttle thus its orbit was boosted. However it remained unoccupied for more than four years before it finally de-orbited in 1991 setting records for single-module space stations.
If you wish to learn more about the real-life mission:
http://www.astronautix.com/s/salyut7....
https://www.astronomy.com/space-explo...
https://shop.minimuseum.com/products/...
https://curious-droid.com/262/salyut-...
http://www.astronautix.com/s/soyuzt-1...