I want to be honest with you, I agree with you that the game is not that long, but you know what?
I have to pay my rent and be able to handle my bills. Get enough courage to build fun games.
I have to document the game, create a story and gameplay, model the assets, paint, texture, rig and animate.
Also need to learn to code, debug and optimisation for best performance, add post-processing, pay for the used software and ... you get the picture.
Do you think this is easy? No, it is not; I worked for three months, day and night, to create a game that takes only 20 minutes to finish. Spent two more weeks getting rid of my mistakes (remove copyright material), and now you telling me to give it for free?
Something is telling me you don't live in this world