Ice Tycoon 2 Gem 4 — Hotel Minigame & Basement
Gem 4 is a two-stage hunt tying together the hotel minigame, a roof key pickup, and basement parkour in the building opposite the hotel. It is among the most involved single gems because you must reach minigame level three before the key spawn activates, then cross the street for a separate interior obstacle course. This page breaks both halves into ordered steps so you do not grab the key early and forget the basement half.
First, progress the hotel minigame until you hit level three. Lower levels teach mechanics but do not unlock Gem 4 assets. Level three opens roof access permissions and spawns the key on the hotel roof. If you are stuck on level two, grind minigame rounds using our hotel walkthrough tips before returning here — attempting roof jumps without level three progress wastes time because the key simply will not appear.
After reaching level three, exit the minigame UI and climb to the hotel roof by stairs or elevator depending on your unlock path. Walk the roof perimeter until you see the key interact prompt on a ledge or HVAC housing. Collect the key — it enters your inventory as a quest item rather than a shop upgrade. The key alone does not count as Gem 4; it unlocks the basement door across from the hotel.
Leave the hotel, cross to the building directly opposite the hotel entrance, and descend into the basement entry. The opposite building is easy to identify at night thanks to accent lighting, but during day cycles look for the paired architecture mirroring the hotel facade. Inside the basement, a parkour line begins immediately: narrow beams, ice pillars, and a drop-down section that kills players who rush.
Move through basement parkour slowly. Shift-lock helps on PC; mobile players should use small jump taps instead of holding jump, which causes overshoot on ice beams. The gem sits at the terminal platform after the final drop. Collect it and confirm four of five gems toward the upgrader wall slot.
Gem 4 overlaps geographically with Gem 1 hotel knowledge, so reuse elevator routes you learned on the fourth floor earlier. If basement doors stay locked, re-check minigame level three status and key inventory — missing either blocks entry.
Once Gem 4 is secured, only Gem 5 remains for most players. Schedule Gem 5 in the castle mountain well when you have stamina for maze navigation and end-stage parkour. Review Secret One requirements so you insert all five gems together rather than wasting a trip to the upgrader with four slots filled.
Two-Part Route Summary
- Reach hotel minigame level 3.
- Collect the key from the hotel roof.
- Cross to the building opposite the hotel.
- Enter the basement and complete the parkour line.
- Pick up Gem 4 at the final platform.
Basement Parkour Notes
The basement sequence punishes sprinting. Treat each beam as a separate jump with a one-second pause on landing. If you fall to the floor, most layouts require walking back to a checkpoint ladder rather than jumping up mid-course. Co-op partners can spot landing angles from below, which helps mobile players more than PC players with shift-lock.