If you've been hoping to build up your digital PlayStation game library, this weekend should represent a great opportunity to do so. As part of a weekend flash sale, Sony has dropped the prices of more than 30 games for PlayStation 3 and PlayStation Vita--ranging from $6 PlayStation Classics to $20 PS3 games--to $1.

This promotion doesn't require a PlayStation Plus membership or anything of the sort; from now until Monday, April 21 at 7 a.m., everyone is free to take advantage of this $1 deal.

Included in the sale are games like Braid (regularly $15), Tokyo Jungle (regularly $15), Sam & Max: The Devil's Playhouse (regularly $20), Gotham City Impostors (regularly $15), and Super Stardust HD (regularly $10), as well as a number of PlayStation Classics like Crash Bandicoot, Crash Team Racing, and Spyro the Dragon (all regularly $6).

The full list of games follows below:

• Back to the Future: The Game - Full Series - $0.99 (original price: $19.99)
• Blast Factor - $0.99 (original price: $9.99)
• Braid - $0.99 (original price: $14.99)
• Crash Bandicoot - $0.99 (original price: $5.99)
• Crash Bandicoot 2 - $0.99 (original price: $5.99)
• Crash Bandicoot 3: Warped - $0.99 (original price: $5.99)
• Crash Commando - $0.99 (original price: $9.99)
• CTR: Crash Team Racing - $0.99 (original price: $5.99)
• echochrome ii - $0.99 (original price: $9.99)
• Everyday Shooter (PS3) - $0.99 (original price: $9.99)
• Everyday Shooter (PSP | PS Vita) - $0.99 (original price: $7.99)
• Gex: Enter the Gecko - $0.99 (original price: $5.99)
• Gotham City Impostors - $0.99 (original price: $14.99)
• Jurassic Park: The Game - Full Season - $0.99 (original price: $19.99)
• Plants vs Zombies - $0.99 (original price: $10.49)
• Red Faction 2 PS2 Classic - $0.99 (original price: $9.99)
• Red Faction PS2 Classic - $0.99 (original price: $9.99)
• Red Faction: Battlegrounds - $0.99 (original price: $9.99)
• Retro City Rampage (PS Vita) - $0.99 (original price: $9.99)
• Retro City Rampage (PS3) - $0.99 (original price: $9.99)
• Retro/Grade - $0.99 (original price: $9.99)
• Sam & Max: The Devil’s Playhouse - $0.99 (original price: $19.99)
• Spyro 2: Ripto’s Rage! - $0.99 (original price: $5.99)
• Spyro: The Dragon - $0.99 (original price: $5.99)
• Spyro: Year of the Dragon - $0.99 (original price: $5.99)
• Stuntman: Ignition PS2 Classic - $0.99 (original price: $9.99)
• Super Stardust HD - $0.99 (original price: $9.99)
• Tales of Monkey Island - $0.99 (original price: $19.99)
• Tokyo Jungle - $0.99 (original price: $14.99)
• Urban Trial Freestyle (PS Vita) - $0.99 (original price: $9.99)
• Urban Trial Freestyle (PS3) - $0.99 (original price: $14.99)
• When Vikings Attack (PS Vita) - $0.99 (original price: $9.99)
• When Vikings Attack (PS3) - $0.99 (original price: $9.99)
• World Gone Sour - $0.99 (original price: $4.99)