Sega is celebrating its 60th anniversary this year and it’s marking the occasion with a week of festivities on Steam. There’s a sale on many Sega games including Persona 4 Golden, Bayonetta, and the Total War series. You can claim a couple of titles for free, including Sonic The Hedgehog 2 (the best Sonic game, IMO).

To snag the classic Saturn title NIGHTS Into Dreams gratis, you’ll need to link your Steam account to your email address at a site Sega set up by December 13th. You’ll also receive “exclusive access to weekly goodies drops” over the next several weeks. Perhaps most intriguingly.

Sega has created a few mini-games especially for the Steam celebrations and they’ll only be available to claim for a limited time. Among them is a peek at a canceled project called Golden Axe: Reborn. The Golden Axed mini-game has just one level. You’ll have 24 hours to add it to your library, starting on October 18th at 1 PM ET. But once you do, it’s yours to keep. The same goes for the other three titles

Another of the mini-games is a crossover between the Streets of Rage and Yakuza franchises. In Streets of Kamurocho, you can beat up a bunch of bad guys with Kiryu and Majima. That one’s available from October 17th-19th.

The other mini-games are a multiplayer tank battle title called Armor of Heroes (available to claim from October 15th-19th) and side-scrolling shoot ’em up Endless Zone (October 16th-19th), is a spin on the ’80s arcade game Fantasy Zone.

Sega is celebrating its milestone in some other ways, including with a fun Fall Guys Sonic skin. You can snag that today if you have enough kudos.