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Hamster Gym: which machine gives the most XP
The Hamster Gym is the first building of the Grand Building event. Hamsters earn permanent XP there and can go past level 50 up to level 100, which improves their Expedition stats. RollerCoin published the rules, and here we did the math to find which machine pays off in each situation.
Getting started
- Open the Gym through the GYM button in the Expeditions area.
- Unlock a slot and install a machine from your Equipment Inventory.
- Choose the hamster. The screen shows duration, expected XP and durability used.
- Start training, with or without a Trainer. Once started, it cannot be canceled.
- When the timer ends, click Claim. The hamster stays busy until you claim, then enters the normal rest.
What each slot costs
| Slot | Cost | Running total |
|---|---|---|
| 1 | Free | 0 RLT |
| 2 | 10 RLT | 10 RLT |
| 3 | 20 RLT | 30 RLT |
| 4 | 40 RLT | 70 RLT |
Each room has four slots and each machine trains one hamster at a time. One Trainer can support several hamsters in the same room, but each session pays its own participation cost.
The machine math
Each machine has at most 12 durability segments. The first four columns are official data. The others are our own calculation:
| Machine | Duration | XP | Durability | XP per hour | XP per durability | Sessions from 12 segments | Total XP |
|---|---|---|---|---|---|---|---|
| Pilates | 4 h | 150 | 1 | 37.5 | 150 | 12 | 1,800 |
| Soccer | 8 h | 320 | 2 | 40 | 160 | 6 | 1,920 |
| Treadmill | 12 h | 540 | 3 | 45 | 180 | 4 | 2,160 |
| Treadmill Premium | 12 h | 900 | 4 | 75 | 225 | 3 | 2,700 |
The result is clear: Treadmill Premium wins on both measures, with 67% more XP per hour than the regular Treadmill and 50% more XP per durability than Pilates. It also charges the Ultimate of hamsters that have one.
Among regular machines, longer sessions also give more per hour. On top of that, every session ends in a rest. Three Pilates sessions take the same 12 hours as one Treadmill, give less XP (450 against 540) and force you back into the game three times. Pilates only makes sense when you want the hamster free soon for an Expedition.
Trainer: how much it adds
| Trainer level | XP bonus | Treadmill | Treadmill Premium |
|---|---|---|---|
| No Trainer | 0% | 540 | 900 |
| 5 | +50% | 810 | 1,350 |
| 8 | +100% | 1,080 | 1,800 |
| 10 | +150% | 1,350 | 2,250 |
The levels in between give +10%, +20%, +30%, +40%, +60%, +80% and +120%. The jump grows at the end: level 9 to 10 is 30 percentage points, against 10 in the first levels. The participation cost depends on the duration and the Trainer's hourly rate, and the screen shows the total before you confirm. Compare that cost with the extra XP: since the bonus is a percentage, it pays more on machines that already give a lot of XP.
Two key rules: upgrading the Trainer only affects new sessions, and its XP bonus does not increase Ultimate charge.
Durability and repair
- Each Repair Item restores 1 segment, without exceeding the maximum.
- You cannot repair a machine in use or with a reward waiting to be claimed.
- Without enough durability, training does not start. Check before planning a session.
- If a session gives more XP than the next level needs, the rest carries over.
More machines should come through Puzzle Events, progression rewards and the Forge.
Which hamster to train first
- Hamster stuck at level 50: gains the most, since it had nowhere left to go. Heroes like Cuscuz only progress through the Gym.
- Hamster with an expensive Ultimate: use Treadmill Premium and get XP and charge in the same session.
- Hamster always on Expeditions: compare first. While training, it cannot go on Expeditions or do other activities.
- Low on RLT: start with just the free slot. The fourth slot costs twice the third.
Text, math and tips by RollTheCal, based on the official announcement. Details may change: always check in the game.
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