BUFFALO, N.Y. — Maybe it was getting his first video game, Cosmic Avenger, for Christmas at the age of 12, and then having to wait an entire year for the hard-to-land Colecovision console to play it on that made Michael Thomasson so determined to get his hands on every video game and system he could find.

Now, 31 years and roughly 11,000 games later, Thomasson is the newly crowned world record holder for having the largest collection of video games. He is featured in a two-page spread in the just-released “Guinness World Records 2014 Gamer’s Edition.”

“I have games on cartridge, laser disc. I have VHS-based games, cassette-based games,” Thomasson said, standing among the collection that fills the basement of his suburban Buffalo home.

Along with the games, he has the devices to play them on, not only the Xboxes and PlayStations but obscure ones like the Casio Loopy, the only game system specifically geared toward girls, which came out in Japan in 1995, and the Pippin, a dud released by Apple the same year.

“Every game on it is awful,” Thomasson says of Apple’s foray into the gaming world. “It’s the least fun of anything in the house.”

At the other end of the spectrum is the old Colecovision unit like the one that appeared under the Christmas tree one year after his grandparents gave him his first game for it. They had mistakenly believed his parents had gotten their hands on the playing system, which was a hot item that year.

“It’s my first love so it’s sentimental,” Thomasson said. But the games also were quality, with very little of the “shovelware” — mediocre, rushed releases — typical of many systems, he said.

“They looked good, they played good. For the time they sounded good,” he said, “for the bleeps and blips of the ’80s.”

He estimates the collection is worth $700,000 to $800,000.

He hasn’t played every game. The father of a 5-year-old, Anna, Thomasson designs games and teaches 2D animation, game design and the history of video games at Canisius College in Buffalo.