Dyad, Killzone multiplayer and more headed to PS Plus

PlayStation Plus subscribers can download Dyad free beginning Dec. 17, according to a post on the PlayStation Blog.

Dyad, a title its developer calls an "abstract tunnel racing puzzle game," will join the Instant Game Collection for PlayStation 3 owners. For more, be sure to read Polygon's Dyad review.

PlayStation 4 owners will be able to download and play the Killzone: Shadow Fall multiplayer trial from Dec. 28-31.

Sony's ongoing Holiday Sale will also receive several new titles at a discount for PS Plus subscribers. Those games include:

• Angry Birds Star Wars (PS3) for $32.39 (regularly $39.99)
• Angry Birds Star Wars (PS Vita) for $32.39 (regularly $39.99)
• Beat Hazard Ultra for $2.50 (regularly $9.99)
• Deadpool for for $24.29 (regularly $49.99)
• Far Cry 3 for $17.99 (regularly $29.99)
• Far Cry 3 Ultimate Edition for $21.19 (regularly $34.99)
• God of War Ascension for $10.00 (regularly $39.99)
• Guacamelee (cross-buy) for $3.75 (regularly $14.99)
• Hitman: Blood Money HD for $4.25 (regularly $16.99)
• Just Dance 2014 for $30.59 (regularly $39.99)
• Knytt Underground (cross-buy) for $2.50 (regularly $9.99)
• Lego Marvel Super Heroes (PS Vita) for $23.99 (regularly $39.99)
• Limbo (PS3) for $3.75 (regularly $14.99)
• Limbo (PS Vita) for $3.75 (regularly $14.99)
• PixelJunk Shooter 2 for $2.50 (regularly $9.99)
• PixelJunk Sidescroller for $2.50 (regularly $9.99)

Sony is also discounting several other games outside of the Holiday Sale, including Atomic Ninjas, Terraria and Zombie Driver HD. You can see the full list of discounted games on the PlayStation Blog.