At $2.24, is it worth trying out Sanctum 2? Well-reviewed Tower Defense/FPS with 4/5 star rating on Amazon and 77/100 on Metacritic. That's the lowest price we've seen the game. Usually goes for $15.

New lowest price on Tower Defense / FPS hybrid Sanctum 2 at GMG during their "666 Sale" - deal is valid for another 5 hours or so as of writing. Steam activated.

The Tower Defense/FPS hybrid Sanctum 2 became available just yesterday on PC. Green Man Gaming's 25% off preorder coupon code still works on it despite it being post release. Coupon ends tomorrow, elsewhere $15. Game activates on Steam.

I receive a "Unable to add the voucher" error when trying to use the coupon.

Tomorrow's release of Sanctum 2 comes with a preorder deal of coupon + freebie copy of Super Sanctum TD (the first installment to the game). Its essentially tower defense meets FPS, so if you enjoy both genre, check this game out.