Get youself one of them light scalpel changable blade units if your hunting becuase most folks dont know how to sharpen blades. Just a fact.

After that buy a Mora 511 theyre close to $10 and light. If you need a bit better one that excellent for food prep and has better handle but still thin and light then purchase a Mora Kansbol. This is an excellent fixed blade. Then put a small Opinel folder in your pocket.

You should have a saw and Gerber makes a cheap and very light sliding blade pocket saw that can be had for $10-$12.

These tools are what you need to process game quickly, use as food prep tools, and its toolage enough to process small wood and get to the center so you can get to dry kindling. All of these together weigh less than a robust fixed blade and theyre cheap. You dont need to use some custom blade from a well known maker or pricey super steels. Keep your tools maintained and sharp and when you go afield theyll take care of you.