Xterium promo codes are short codes that you enter in the game to receive a free reward: antimatter, dark matter, mods, stardust, and resource containers. Each promo code can be redeemed once.
The promo codes here are divided into two groups: permanent codes—which are always valid (for example, AM100 gives you 100 antimatter); and holiday codes—which are activated annually during their respective periods: NEWYEAR (New Year, January), COSMOSDAY (Cosmonautics Day, late March–April), HALLOWEEN (Halloween, late October–November), and XTERIUM (Birthday of the Universe, November).
Open the promo code card to see the exact validity period and the full list of rewards.
Permanent Promo Codes
· 1 promo codesThese always work—enter the code in the game to receive your reward.
Holiday Promo Codes
· 4 promo codesThey are activated annually during their respective holiday seasons (New Year's, Halloween, Cosmonautics Day, the Universe's Birthday).
Promo code COSMOSDAY — Cosmonautics Day
"Cosmonautics Day" holiday. Takes place annually from March 28 to April 24. Reward: 12 large containers.
Promo code HALLOWEEN — Halloween
"Halloween" Event. Runs annually from October 24 to November 14. Rewards: 100 antimatter, 50,000 dark matter, 10 medium containers, and 2 large containers.
Promo code NEWYEAR — New Year
"New Year" Holiday. Runs annually from January 1 through January 31. Rewards: 125 antimatter, 10,000 dark matter, 1 stardust, 250 mods, and containers (small ×50, medium ×25, large ×5, secret ×30).
Promo code XTERIUM — Universe Birthday
"Birthday of the Universe" Event. Held annually from November 17 to 30. Rewards: 100 antimatter, 10,000 dark matter, and containers (small ×56, medium ×26, large ×6, secret ×36).
Summary table of all promo codes
| Name | Group | Effect |
|---|---|---|
| Promo code AM100 | Permanent Promo Codes | Permanent promo code — always works. Reward: 100 units of antimatter. |
| Promo code COSMOSDAY — Cosmonautics Day | Holiday Promo Codes | "Cosmonautics Day" holiday. Takes place annually from March 28 to April 24. Reward: 12 large containers. |
| Promo code HALLOWEEN — Halloween | Holiday Promo Codes | "Halloween" Event. Runs annually from October 24 to November 14. Rewards: 100 antimatter, 50,000 dark matter, 10 medium containers, and 2 large containers. |
| Promo code NEWYEAR — New Year | Holiday Promo Codes | "New Year" Holiday. Runs annually from January 1 through January 31. Rewards: 125 antimatter, 10,000 dark matter, 1 stardust, 250 mods, and containers (small ×50, medium ×25, large ×5, secret ×30). |
| Promo code XTERIUM — Universe Birthday | Holiday Promo Codes | "Birthday of the Universe" Event. Held annually from November 17 to 30. Rewards: 100 antimatter, 10,000 dark matter, and containers (small ×56, medium ×26, large ×6, secret ×36). |
Questions and answers
How many promo codes are there in Xterium in total?
The game has 5 promo codes. They are split into 2 groups: Permanent Promo Codes — 1, Holiday Promo Codes — 4.
Which promo codes are active in Xterium?
The permanent promo code AM100 (100 antimatter) and the holiday ones: NEWYEAR (New Year), COSMOSDAY (Cosmonautics Day), HALLOWEEN (Halloween) and XTERIUM (the universe's birthday). The holiday ones only work during their period each year.
How do I enter a promo code in Xterium?
A promo code is entered in the game in a special code field. Each promo code can be activated once, after which the reward is credited to the account.
Which promo code works at all times?
AM100 is a permanent promo code, it is not tied to a date and gives 100 units of antimatter.
What do holiday promo codes give?
Antimatter, dark matter, mods, star ore and resource containers. For example, NEWYEAR gives 125 antimatter, 10,000 dark matter, 1 star ore, 250 mods and a set of containers.
