What is the best free tool for developing games?? Anyone knows?

Answer 1

Best Free Game Engines and Development Software
Best Free Game Engines – Unity and Unreal.
#1: Unity.
Honorable Mention: Amazon Lumberyard.
Best Free 2D Art Software – GIMP.
Best Free 3D Art and Animation Software – Blender.
Best Free Sound Design Software – Audacity.
Best Free Project Management Software – Trello.

Answer 2

Unity is by far the best

Answer 3

ok wil try thanks

Answer 4

but unity is not free

Answer 5

Unity provides both free and paid versions