I am making a PSX Survival-Horror game heavily influenced by Silent Hill. Any tips? 
-prepare a story
-prepare menu assets
-prepare ui
-prepare 3d characters in blender in low poly
-prepare 3d low poly ambient or learn image to 3d plane
-learn 3d isometric perspective
-prepare music assets
-prepare ui map for each floor
-add items in rooms
-prepare riddles
This if u’ve already experience in GD
I’m surely forgetting more
GL