Color Lines (Russian: Цветные Линии) is a puzzle video game created in 1992 by Oleg Demin, Gennady Denisov and Igor Ivkin and published by Gamos Ltd.[1] It is a turn-based board game.

[1][3] According to the director of Gamos, Evgeniy Sotnikov, the author and developer of the game was Oleg Demin.

But because he was working at Moscow City Hall, his management wouldn't approve his association with Gamos.

For that reason, the very first version of the game listed Olga Demina, the wife of Oleg, as the author.

[5][6] Due to weak copyright laws and widespread pirated software in Russia, by 1996 Color Lines game was used by millions of players and was considered one of the most popular games among office employees, while the publisher sold only 300 legal copies.