Expansion Weapons are weapons that can were made available post obtained by participating in various Save the World expansions. They are often obtainable through the expansion Llamas or by completing quests.
The Expansion Weapons, categorized by expansion, are as follows:
- Founder's Weapons are exclusive to players who purchased higher tiers of Founder's Packs.
- Hydraulic Weapons are exclusive to the August 2017 Survive the Storm and January 2018 Mutant Storms events.
- Neon Weapons
- Scavenger Weapons are exclusive to the October 2017 Horde Bash event.
- Vindertech Weapons are exclusive to the November 2017 Mutant Storms event.
- Military Weapons were in the Blockbuster event.