If you loved Portal 2, you’re going to be nuts over today’s first free app. Plus, don’t miss a terrific explorer’s app for travelers (from Gowalla) and a powerful ewallet/password app for your Mac.

Corrupted Core
Price: $.99 Free
Made for: iPad

Ye Olde Perfumer
Price: $.99 Free
Made for: iPhone, iPad

BuckShot
Price: $1.99 Free
Made for: iPhone

Tappi Bear All in 1 – Pack 2
Price: $.99 Free
Made for: iPhone

Shovel Heroes
Price: $.99 Free
Made for: iPhone, iPad

Last Stand Stan
Price: $.99 Free
Made for: iPhone

Hired Gun
Price: $1.99 Free
Made for: iPhone

Piffle
Price: $.99 Free
Made for: iPad

FoodBreaker
Price: $.99 Free
Made for: iPhone, iPad

Ninja Chicken 2: Shoot ’em Up HD
Price: $1.99 Free
Made for: iPad

ColorManager Cam
Price: $1.99 Free
Made for: iPhone

eWallet Go
Price: $4.99 Free
Made for: Mac

Go Explore
Price: $.99 Free
Made for: iPhone, iPad