Cool idea and implementation, maybe there can be placed like unlocking gun towers? Aim looks like shifted a bit.
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Thank you. Yeah there are 2-3 other game systems that were left out by me like a perks system and sort of 'loot' drop (nuke, one shot kill etc) so gun towers would be a cool addition if I decide to update the game further!
There is a 'limited random offset' added to the bullet direction to make it not shoot in a perfect straight line. Could balance it a bit maybe.