The Apogee BK-01 or Apogey BK-01 is a Soviet 8-bit personal computer built on the Radio 86RK and released in 1988. Its later version, the Apogee BK-01C featured color support.
Apogee BK-01 - Homebrew
You are Rockford, and you have to dig through monster infested caves in search of diamonds. In each level you must collect a certain number of these diamonds, in order to open a portal to the next stage. Enemies can be squashed by falling boulders, which are released when the ground below them is removed or they are pushed onto empty ground, but be careful because these can also squash you. In later levels, difficulty is increased by many puzzle elements and shorter time limits.
The Bungeling Empire has stolen a huge cache of gold from its rightful owners, and your mission is to infiltrate its treasury and recapture it. This entails progressing through 150 screens of platforms, ladders and ropes. The Empire has sent robotic guards down to protect the gold, and contact with any of these will cost you a life. Your method of escaping them is to press fire to dig a hole in their line of movement, thus causing them to fall in briefly, allowing you to move across the gap safely. Once all the gold has been collected, a ladder allowing you to move onto the next screen is...
Apogee BK-01 - Released
Tetris (Russian: Те́трис, pronounced [ˈtɛtrʲɪs]) is a tile-matching puzzle video game, originally designed and programmed by Russian game designer Alexey Pajitnov. It was released on June 6, 1984, while he was working for the Dorodnitsyn Computing Centre of the Academy of Science of the USSR in Moscow. He derived its name from the Greek numerical prefix tetra- (all of the game's pieces contain four segments) and tennis, Pajitnov's favorite sport.