This mod adds a fully functional second weapon in the left hand, implemented exactly as seen in Serious Sam 2 and Serious Sam 4.
Works with both the original version and the Classic Patch.
You can play through both official maps and any custom ones.
Ammunition is shared between both weapons in both hands.
Press Alt to equip the same weapon in your left hand as in your right.
Hold Alt and scroll the mouse wheel to select any weapon for your left hand.
Press Z to holster the left-hand weapon.
You can only aim with a sniper rifle when it's equipped solely in your right hand.
Opening NETRICSA, pressing buttons, or interacting with objects is only possible when holding a single weapon.
Extract to the Mods folder and launch via the in-game menu.