Check matching lobby
Look for the upgrade terminal in the matches preparation lobby before a run.
Class Upgrade Guide
To upgrade a class in Survive Zombie Arena, players should check the preparation lobby before a match, look for the upgrade shop or terminal, and spend available credits or mastery resources on class abilities. Exact costs and upgrade routes can change after updates, so this page marks route details as reported unless current in-game proof is available.
Class upgrades should align with your team role. Avoid spending resources randomly before normal runs are stable.
Locate the reported upgrade terminal in the matches preparation lobby. Check your resource count (credits or pending mastery items) and apply unlocks to your selected class profile before waves begin.
The upgrade terminal is reported to appear directly in the matches preparation lobby. Players can access this station before starting a game to verify their current class progression and purchase active abilities.
Class progression is reported to require either standard in-game credits or pending mastery resources. It is safe to check the terminal regularly as exact costs can change after balance updates.
Priority should go to stabilising your core survival and damage routes. We recommend the following upgrade order:
Look for the upgrade terminal in the matches preparation lobby before a run.
Ensure you have enough reported credits or pending mastery resources.
Prioritize upgrades that directly match your intended team role.
Apply upgrades to activate class skills and stats before waves start.
For new players, upgrading the Survivor class helps learn basic combat mechanics. Medic is also a highly recommended early support upgrade to keep team runs active.
Bastion upgrades are reported to focus on shield durability and tank scaling. Upgrading this class helps block defensive choke points. Detailed build paths are pending in-game proof on the Bastion Guide.
Medic upgrades are reported to improve area healing towers and team buffs. This is a high priority for public co-op lobbies. Full upgrade specs are pending on the Medic Guide.
Necromancer upgrades are reported to scale summon count and minion health. This is a strong candidate for solo wave pushing. Mastery routes are pending update checks on the Necromancer Guide.
Celestial class upgrade paths remain unconfirmed and are kept on our watchlist. Until current game evidence is available, players should check the All Classes hub for event updates.
This video is included as a visual reference for class upgrade flow. This page still marks shop location, resource names, and upgrade routes as reported unless current in-game proof confirms them.
| Claim | Label | Source Type | Safe Action |
|---|---|---|---|
| Upgrade shop appears in the preparation lobby | reported | search result summary / video snippets | verify the current lobby before spending credits |
| Class upgrades may use credits or mastery resources | reported | search result summary | check current in-game cost and resource names |
| Celestial class has upgrade interest | watchlist | video results | treat as update-sensitive until confirmed in-game |
| Upgrade videos show shop and perk flows | reported | YouTube video snippets | use video only as a visual reference and verify current in-game UI |
Locate the reported upgrade terminal in the matches preparation lobby and spend credits or mastery resources to boost class active abilities.
The upgrade shop or terminal is reported to appear in the matches preparation lobby before a game starts.
Class upgrades are reported to use credits or pending mastery resources depending on the current version.
Survivor upgrades are useful for learning basics, while Medic upgrades are reported strong for early team support.
Yes, Bastion upgrades are reported strong for shielding teammates and securing defensive choke points.
Yes, Medic upgrades are a reported high priority to sustain public match lobbies during high-wave runs.
Celestial class upgrade routes are pending update verification and remain on the update-sensitive watchlist.