The Humble Bundle Store is celebrating its first birthday by offering Metro 2033 for free, but you only have a little more than an hour to grab it. The offer will end today at 10 a.m. PST.

In addition to Metro 2033, the Humble Store 1 Year Birthday Sale also has some great deals. You can get Thief for $10, the Metro Redux Bundle for $24, and Papers, Please for $5.

Some other highlights from the sale:

• Legend of Grimrock — $3.74
• Godus — $5
• Rogue Legacy — $3.74
• Banished — $10
• Batman: Arkham Origins — $5
• Outlast — $5
• Gone Home — $8

You can find the rest of the deals on the Humble Store 1 Year Birthday Sale page.

Humble said that since the store launched on November 11, 2014, it has since added 1,300 games to its catalog and generated more than $1.5 million for the American Red Cross, Child’s Play Charity, Electronic Frontier Foundation, World Land Trust and charity: water.

Which games are picking up this weekend? Let us know in the comments below.