“Mommy's Best Games' 2D shooter is fun the whole way through.”
7/10 – IGN
“Easily the most insane and downright fun 2D shooter I've played all year, if not ever.”
85/100 – Strategy Informer
“There's quite a lot of cathartic fun to be had with such a reckless onslaught of bullet-flavored justice”
7/10 – Destructoid
“Check your brain at the door, kick back, relax and enjoy a little carnage. It's worth it. Seriously.”
8/10 – Worth Playing
Two-Player Local Cooperative Play - Serious Sam can pair up with his new buddy Huff to slaughter Mental’s horde together in an orgy of violence and destruction!
Gunstacker Upgrades – Over 30 new guns to mix and match in towering stacks of awesome! Shotguns that fire a horde of bees, prism lasers, the return of Serious Sam’s trademark cannon and more! Exclamation point!
New Campaign and Challenge Missions – Tackle new missions and take to the air in your very own missile-loaded Pterosaur or roll through your foes on a dynamite-powered unicycle!
New and Upgraded Enemy Classes - The new Torcher Kitty, Explosion Eater and the Armored Gnaar are all stepping into the arena to wreck havoc the heroic Serious Sam!
Serious Sam explodes into the second dimension using everything in his arsenal to battle the abominable legions of Mental’s horde. Pull the trigger to let the heavy ordinance fly in Serious Sam Double D XXL, a completely reloaded version of the indie sensation Serious Sam Double D with all-new missions, weapons, enemies, and challenges. Pile on the firepower with the revolutionary Gunstacker and fire all your weapons at once in a symphony of destruction! All that stands between victory and annihilation is a man in a T-shirt and jeans wielding a great big pile of guns.
- Serious Action: Unleash a storm of bullets and flame against an unrelenting horde of bizarre and ferocious creatures hell bent on bringing down the heroic Serious Sam. Clash against Mental’s army across 18 levels in three sensational worlds from the pyramids of ancient Egypt to the volcanic chaos of Pompeii to the harsh jungles of prehistoric Earth.
- Revolutionary Gunstacker: Duel-wielding is for lesser men. Serious Sam Double D’s new Gunstacker allows Serious Sam to stack any combination of weapons one on top another and fire them all at once. Two shotguns on a laser gun and grenade launcher? Of course. Four chainsaws and a flamethrower? Yes, please.
- Legions of Bizarre Beasts: Clash against classic Serious Sam enemies like Headless Kamikazes, Gnaar, and Biomechanoids or gun down all new monstrosities like the insane Chimputees, oddball Vuvuzelators, and the surprisingly sexy Femikazes. Prove your worth and take down four amazingly unique bosses in epic showdowns full of carnage!
- Challenge Rooms and Serious Secrets: Keep the action coming with a battery of action-packed challenge rooms filled to the brim with waves of attacking beasts! Get really serious and try to uncover dozens and dozens of secrets hidden throughout this wild world!