Ice Tycoon 2 Upgrade Priority Tier List

S-Tier Upgrades — Buy or Do Immediately

Relocating freezers to -10 then -20 then -40 cold when water and dropper already saturate — free speed. Every secret hunt for +5% permanent income. Redeeming active codes before large merchant buys — multiplicative with Premium 15% and group 10%.

• S — First dropper, first freezer, first furnace
• S — Water upgrades when freezers idle (Puddle → Fountain → Pond → Well)
• S — Dropper tier when freezers stay full and water flows
• S — Cold zone freezer placement at appropriate tier
• S — Secrets and gems (+5% each permanent)

A-Tier Upgrades — Strong Next Purchases

Mid-tier droppers during Fountain era when dual freezers approach. Second freezer row before maxing furnace if cold tiles available. Furnace speed when ice visibly banks. Water Bucket at ~40 plus rainforest refills per key locations when Pond savings lag.

Hotel floors for lump cash when one merchant tier away. Plash at 100 when Fountain savings feel far but Seep or Puddle starves you — comfort tier, not skip tier.

B-Tier Upgrades — Situational Fillers

Duplicate water sources on secondary lines for experimentation. Mid furnace upgrade before second freezer if you refuse cold map travel. Trophy attempts before secrets when trophies near completion for rebirth — opportunity cost versus +5% secrets depends on remaining count.

Cosmetic plot expansions if available — zero throughput impact.

C and D-Tier — Defer These

C-tier: max furnace before dropper matches water on Well line — overmelting underfed ice. D-tier: Well before Pond when Pond still starves dual lines — save discipline failure. D-tier: skipping droppers entirely for extra furnaces — fundamental misunderstanding of loop.

C-tier: hunting gem five before gem one when hotel floor four unreachable — sequence matters for efficiency not mechanics.

Phase-Based Priority Tables

Early early game: S = Seep 60, dropper, freezer, furnace, Puddle 80. A = Fountain 120 savings focus. Mid mid game: S = dropper tier, Pond 160, cold -20, secrets. A = hotel floors, bucket loops. Late late game: S = Well 180, elite dropper, -40 cold, all secrets, trophies. A = furnace max, rebirth prep upgrades.

Compare merchant stock on merchant page before every purchase — tier list assumes standard unlock order.

Exceptions and Edge Cases

Speedrun accounts with immediate codes and group plus Premium may skip Plash entirely — tier downgrades to B-tier comfort only. Players without bonuses should treat Plash as A-tier when Fountain savings exceed thirty minutes of active grind.

Hotel lump cash can bump Pond at 160 from A-tier to S-tier for that session — buy Pond immediately after floor clears that pay more than two hours melting. Hotel guide lists approximate breakpoints.

Never classify secret hunts as D-tier unless you literally cannot reach map locations yet — +5% permanent income beats one furnace tier eventually. Five secrets equal one full rebirth trophy multiplier in long-run math.

Upgrade priority is a living document — when patches shift Well at 180 drip or cold strength, revisit S-tier assignments within a week of confirmed patch data on official Discord.

Sample Priority Session

Minute zero to thirty: S-tier Seep, dropper, freezer, furnace. Thirty to sixty: S-tier Puddle or A-tier Fountain savings. Hour one to two: S-tier dropper tier if freezers full, else S-tier Fountain buy. Hour two plus: S-tier secrets when map unlocked, A-tier Pond, S-tier cold relocation.

Deviate only when hotel pays immediate Pond cost — then hotel jumps queue to S-tier for that session per announcement weekend grinds.

Log your session deviations in income tracker notes — personal tier adjustments backed by data help wiki editors refine defaults over time.

When two upgrades tie on tier grade, pick whichever removes idle seconds you observe right now — tier lists describe averages, your factory logs describe truth.