Alliance Depot

Alliance Depot

In brief: “Alliance Depot” — a building of the “Special” category in Xterium, available from the start of the game, maximum level — 15.

(data current as of 2026-05-22, game version 2.12.7)

The alliance depot supplies fuel to a friendly fleet that is in low orbit in defense of the planet. The level determines the maximum volume of stored deuterium which in turn allows you to simultaneously support a great number of fleets able to participate in the defense of the planet. Longer times in orbit require a greater amount of fuel.

Group

Special

Where built

Planet

Max level

What it gives

Alliance building

Energy

No energy required

Description

What it is and why you need it

Alliance Depot — a building from the “Special” category in Xterium. Main effect — alliance orbital infrastructure. An alliance-level building. Provides special mechanics for the alliance.

When to build

Available from day one.

What to watch out for

No energy required. The building runs autonomously and does not load the planet's energy balance.

Effect at key levels

Exact effect numbers for the building at different levels. Without senator, alliance, special-offer or anomaly bonuses.

Building effect at key levels
Level	Fleets parked	Parking duration
1	1 pcs.	1 h
5	2 pcs.	3 h
10	3 pcs.	5 h
15	4 pcs.	8 h

Building effect at all levels
Level	Fleets parked	Parking duration
1	1 pcs.	1 h
2	1 pcs.	1 h
3	1 pcs.	2 h
4	2 pcs.	2 h
5	2 pcs.	3 h
6	2 pcs.	3 h
7	2 pcs.	4 h
8	3 pcs.	4 h
9	3 pcs.	5 h
10	3 pcs.	5 h
11	3 pcs.	6 h
12	3 pcs.	6 h
13	4 pcs.	7 h
14	4 pcs.	7 h
15	4 pcs.	8 h

Cost

Price growth multipliers by ranges: lvl 15+ ×2

Construction cost at key levels
Level	Metal	Crystal	Time
1	6 150	1 550	13:30
3	25K	6 150	53:40
7	395K	98K	14:21:53
11	6.3M	1.6M	9d 13:41
15	100M	25M	151d 21:50

Full table of construction cost at all levels
Level	Metal	Crystal	Time
1	6 150	1 550	13:30
2	13K	3 100	27:17
3	25K	6 150	53:40
4	49K	13K	01:47:55
5	98K	25K	03:34:23
6	200K	49K	07:14:35
7	395K	98K	14:21:53
8	785K	200K	1d 04:48
9	1.6M	395K	2d 10:05
10	3.2M	785K	4d 18:43
11	6.3M	1.6M	9d 13:41
12	12.5M	3.2M	19d 00:56
13	25M	6.3M	37d 23:27
14	50M	12.5M	75d 22:55
15	100M	25M	151d 21:50

How it differs from similar buildings

To choose what to upgrade — see how this building compares to the alternatives.

Questions and answers

What is «Alliance Depot» in Xterium?

“Alliance Depot” — a building of the “Special” category in Xterium, available from the start of the game, maximum level — 15.

What is the maximum level of the «Alliance Depot» building?

Maximum level — 15.

How much fleets parked does «Alliance Depot» give by level?

Fleets parked grows with levels: at level 1 — 1pcs.; at level 15 — 4pcs.. The numbers are base values, without senator bonuses, anomalies, or alliance upgrades.

How much fleets parked at the maximum level of «Alliance Depot»?

At level 15 (the last calculated level in the game) «Alliance Depot» gives 4pcs. fleets parked.