the control scheme feel weird:
-i can't jump while moving and using the sword at the same time using my two hands. maybe the movement should be done with WASD instead of arrows
-you need to use up arrow to read a sign, but press the jump button to continue the text/get out of the sign: it should probably be just one button for all that
-i think you should add an "action button" to do all major things in the game: read the signs (and continue/exit the sign), ledge grab (while jumping/falling), etc
-changing the direction of the spear should be done manualy instead of automatic: while placing the spear, simple dragging the mouse to the direction i want should do the job.
some bugs:
-the gun dont seems to work. even with bullets, the gun wont fire
-that box thing that shoots arrows, the arrows damage you even on the ground. you can die in two/three seconds if you arent careful enough
i can see some potencial good gameplay with alchemy and scenary interaction, so keep going