Description of how to solve LOGIC puzzles to find Hidden GAs!

Solve each of the 5 Logic puzzles to find 5 hidden GAs. You will put the 5 string character where the question marks appear in this address: https://www.steamgifts.com/giveaway/?????/ There is also a metapuzzle to solve-- details are given once you get there.

• Hidden GA Logic Puzzle 1
• Hidden GA Logic Puzzle 2
• Hidden GA Logic Puzzle 3
• Hidden GA Logic Puzzle 4
• Hidden GA Logic Puzzle 5