End of the World: My Items Can Be Upgraded Infinitely.

The sun disappeared, alien swarms attacked, and humanity fell into the Dark Ages.
"Poor quality pistol lv1/9, damage 3, effective range 15 meters"
If effective damage is caused ten times cumulatively, it can be upgraded to:
「普通手枪lv2/9，伤害4，有效射程30米，激活额外属性：子弹回复1/1h」
Faced with the overwhelming swarm of insects, Lin Feng obtained an item upgrade system, which allows him to bind his equipment and accumulate upgrade points by killing enemies, thus achieving unlimited upgrades for the equipment.
Pistol → Bolter → Nuclear Cannon… → Star Destroyer Cannon
Upgrading also provides additional attributes: bullet recovery, space magazine
RV → Armored Vehicle → Mobile Fortress… → Space Battleship
While others were still running around, Lin Feng was already driving an armored vehicle, holding a grenade launcher with unlimited bullets, enjoying the fun of killing monsters and leveling up.

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