Tomorrow's routine North American PlayStation Store update will bring The Cave and Tekken 6 on PSP free to US PlayStation Plus subscribers.
These will be the two latest entries into the US Instant Game Collection - a selection of titles offered at no extra costs to PS Plus subs.
The Cave is a charming new adventure game from Monkey Island and Maniac Mansion creator Ron Gilbert, and Double Fine Productions (video below).
Tekken 6 on PSP was considered one of the portable's best fighting games and is fully playable on Vita.
Subscribers will tomorrow also get a 40 per cent discount on 2D puzzle shooter Rocketbirds: Hardboiled Chicken on both PS3 and Vita, and a 25 per cent discount on the Hot Shots Golf: World Invitational Course and Character Pack, which comes with three new characters (Erika, Gloria, & Kat) and three new courses (Mt. Sakura, Northern Fox, & Mar Cielo).
The Vita version of Plants vs. Zombies will be removed from the US Instant Game Collection on March 26.