Run to your garage. Flee to the loft. Rifle through those boxes that never got unpacked after the last move.
Because if you've got any of the following video games sitting about gathering dust, they could be about to fund your next holiday. Or seven.
LoveAntiques.com and Kotaku have compiled lists of those retro games that are currently amongst the most valuable in the world.
And as ever, if you haven't still got the box, expect that estimated value to take a major HP hit.
The Adventures of Batman and Robin (Sega Mega CD)
Estimated value: £550
Fatal Fury Special Edition (Sega Mega CD)
Estimated value: £550
Cool World (Super Nintendo)
Estimated price: £550
Stadium Games (Nintendo NES)
Estimated price: £600
Viewpoint (Neo Geo AES)
Estimated price: £750
T Mek (Sega 32X)
Estimated price: £800
X Zone (Super Nintendo)
Estimated price: £850
Primal Rage (Sega 32X)
Estimated price: £1,000
Darxide (Sega 32X)
Estimated price: £1,200
Snowboard Kids 2 (Nintendo 64)
Estimated price: £2,000
The Flintstones: The Surprise at Dinosaur Peak
Estimated worth: £800
Softporn Adventure
Estimated worth: £500-£2000
NCAA College Basketball 2k3
Estimated worth: £300
Clayfighter: Sculptor’s Cut
Estimated worth: £400
World of Warcraft: Collector’s Edition
Estimated worth: £240 – £4300 (if you haven’t used the redeemable scratch code on the box)
StarCraft 64
Estimated worth: £430
Rule of Rose
Estimated worth: £300
