Core progression
Smart Greenhouses → Ice Bloom → Bio Lab → Virus Resistance → stronger Snow Leopards and Frostbanes → more seasonal resources.
Bio Lab breakpoints
Lv.26 supports maximum Lv.60 Frostbane access while staying Support. Lv.29 is the safer breakpoint before switching to Combat.
Season heroes
Bella · Blood Rose, Alma · Wings of Dawn, and Harleyna · Guard of Order.
Everfrost quick reference
| System | Reference |
|---|---|
| Main progression stat | Virus Resistance |
| Main resources | Ice Bloom and Frost Cores |
| Production building | Smart Greenhouse — four normally available, fifth tied to Wartime Investment |
| Resistance building | Bio Lab |
| Seasonal enemies | Snow Leopards and Frostbanes, up to Lv.60 |
| Season heroes | Bella, Alma, Harleyna |
Seasonal buildings
| Building | Role | Priority |
|---|---|---|
| Smart Greenhouse | Produces Ice Bloom | Very high from the start |
| Bio Lab | Raises Virus Resistance | Highest when resistance blocks efficient farming |
| Command Post | Seasonal command structure and broad combat support | After the progression engine is stable |
| Icy Arsenal | Offensive seasonal combat / morale | Offensive and rally-focused roles |
| Icy Fort | Defensive seasonal combat | Holders, defenders, durability roles |
Bio Lab breakpoints
| Goal | Bio Lab |
|---|---|
| Reach maximum Lv.60 Frostbane while staying Support | Lv.26 |
| Switch to Combat without losing Lv.60 access | Lv.29 |
Everfrost events and mini-games
Hunter Yeti
Seasonal alliance rally target. Plan around 2 rewarded Yeti opportunities per day Monday–Saturday and 5 on Sunday.
Frozen Rescue
Recurring rescue event with a 10-rescue daily cap during its active window.
| Animal | Primary reward |
|---|---|
| Boar | Diamonds |
| Fox | Orange Skill Books |
| Mammoth | Universal Exclusive Equipment Fragments |
| Stag | Badges |
Arctic Ice Pits
| Day | Ice Pit |
|---|---|
| Monday | Level 1 |
| Wednesday | Level 2 |
| Friday | Level 3 |
Ice Pits are cross-state alliance objectives with fishing attached. Use the live in-game timer for the exact start time; the contest commonly appears around 11:00 Apocalypse Time.
Snowman Mania
Seasonal snow collection progresses toward a permanent snowman decoration. Keep pace throughout the season rather than trying to recover the entire event late.
Glory War
- Cross-state alliance-vs-alliance seasonal war.
- The winner takes 20% of the losing alliance's Season Points.
- Destroying Alliance Center I causes an immediate loss for that alliance.
- Exact unlock week can vary by rollout; follow the current season calendar.
Mastery strategy
Use Support while access, production, and resistance are the main bottlenecks. Move toward Combat when alliance warfare becomes more valuable than further progression speed.
| Phase | Focus |
|---|---|
| Early Everfrost | Support / progression |
| Bio Lab Lv.26 | Support can maintain Lv.60 Frostbane access |
| Bio Lab Lv.29+ | Safer point to switch toward Combat |
| Glory War / sustained PvP | Role-dependent combat investment |
Core rule: use Support while it materially improves access and resource flow. Switch when the combat value is greater than the progression you are giving up.
Season Journey and Wartime Investment
Season Journey provides free and paid seasonal progression rewards. Wartime Investment can unlock the fifth Smart Greenhouse and additional production/resistance benefits. Pack contents and prices can change, so use the current in-game store as the final reference instead of an old price list.
Season 2 heroes
| Hero | Faction | Role note |
|---|---|---|
| Bella | Blood Rose | Assaulter-focused frontline durability and damage support |
| Alma | Wings of Dawn | Defensive Wings hero with Shooter value |
| Harleyna | Guard of Order | Rider-oriented scaling and burst potential |
More Last Z guides and tools
Last Z: Survival Shooter GuideLast Z Heroes Guide & DatabaseLast Z Research Guide & TrackerLast Z HQ Upgrade Guide & PlannerLast Z Tank Modification Guide & TrackerLast Z Alliance Duel (VS) GuideLast Z State vs State (SvS) GuideLast Z Canyon Clash Guide & PlannerLast Z Season 3: Dinosaur Origin GuideLast Z Events Guide & CalendarLast Z Gift Codes & Redemption TrackerLast Z Tactical Plug-ins Guide
Community reference: This page reflects the reviewed Season 2 Everfrost structure as of August 25, 2026. Exact event start times, store offers, and rollout timing can change; confirm those items in the current in-game interface.