A living, fertile egg, ready to hatch! Laid by a soft-skinned crustacean, this species has evolved a synergistic relationship with Travellers, occupying the discarded shells of slain Sentinel Quadrupeds. Scans indicate the being within has the genetic potential to be shy and migratory.
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Xeno Arena
10 arena modes, 4 league ladders and 5 reward eggs, with what each win pays.
Modes 10
Holo-Arena
| Mode | Difficulty | Win reward |
|---|---|---|
| PvP StandardChallenge other players or alien lifeforms in simulated Creature Battles! | Player vs player | league progress |
| Petbattle Nexus PvEDefeat Iteration: Oceanus on the Space Anomaly in battles to earn Challenger Invites. Oceanus is a formidable opponent, and each day, they offer an especially tough battle to all Travellers across the galaxies. | Hard | 175–250 Nanites, Retroviral Pellet (75%), league progress |
| Petbattle Planet StandardA nearby Arena League Challenger has invited you to battle | Medium | 12–20 Nanites, Retroviral Pellet (3%), league progress |
| Petbattle System StandardA nearby Arena League Challenger has invited you to battle | Easy | 15–30 Nanites, Retroviral Pellet (8%), league progress |
| Petbattle System ChampionThe local Arena League Champion has invited you to a Creature Battle. | Hard | 30–50 Nanites, Challenger's Invitation, Retroviral Pellet (60%), league progress |
| Petbattle Outpost Standard | Easy | 15–30 Nanites, Retroviral Pellet (8%), league progress |
| Petbattle SettlementCompete at Holo-Arenas on planets and Space Stations. | Medium | 5–10 Nanites, league progress |
| Petbattle LargebuildingA nearby Arena League Challenger has invited you to battle | Medium | 10–20 Nanites, Retroviral Pellet (3%), league progress |
| Petbattle PiratesA nearby Arena League Challenger has invited you to battle | Medium | 10–20 Nanites, Retroviral Pellet (3%), league progress |
Dice game
| Mode | Difficulty | Win reward |
|---|---|---|
| Dicegame PvE Standard | — | None |
League ladders 4
United by an enthusiasm for all things zoological and sharing a keen competitive streak, members of the Arena League roam the galaxy seeking new life to tame, nurture and train. Members can be found at Holo-Arenas on planets and Space Stations challenging one another to prove which of them has raised the most powerful, well-trained Companions in simulated battles between their creatures. They are always accepting of new challengers, though Travellers will have to prove themselves before they can expect to take on the toughest competitors.
Each ladder tracks one arena stat. Higher tiers unlock the reward eggs below.
Champions Defeated
Defeat system champions
| Tier | Title | Threshold |
|---|---|---|
| 0 | Untested | 0 |
| 1 | Casual | 3 |
| 2 | Amateur Battler | 5 |
| 3 | Rising Star | 10 |
| 4 | System Contender | 15 |
| 5 | Station Champion | 20 |
| 6 | Stellar Phenomenon | 25 |
| 7 | Sector Celebrity | 30 |
| 8 | Regional Defender | 40 |
| 9 | Quadrant Elite | 50 |
| 10 | Galactic Champion | 60 |
Arena League Rating
Win Holo-Arena battles
| Tier | Title | Threshold |
|---|---|---|
| 0 | Nestling | 0 |
| 1 | Fledgling | 3 |
| 2 | Crested | 10 |
| 3 | White Crest | 25 |
| 4 | Amber Crest | 50 |
| 5 | Violet Crest | 75 |
| 6 | Azure Crest | 100 |
| 7 | Scarlet Crest | 125 |
| 8 | Onyx Crest | 150 |
| 9 | Silver Crest | 180 |
| 10 | Gold Crest | 220 |
Full Mutations
Maximise companion mutations
| Tier | Title | Threshold |
|---|---|---|
| 0 | Dabbler | 0 |
| 1 | Trainer | 1 |
| 2 | Hybridiser | 2 |
| 3 | Evolver | 3 |
| 4 | Mutator | 5 |
| 5 | Splicer | 7 |
| 6 | Biosynthesiser | 9 |
| 7 | Genewright | 11 |
| 8 | Mad Scientist | 14 |
| 9 | Xenobiologist | 17 |
| 10 | Morphogeneticist | 20 |
Oceanus Battles
Defeat Iteration: Oceanus on the Space Anomaly
| Tier | Title | Threshold |
|---|---|---|
| 0 | Stranger | 0 |
| 1 | New Collector | 1 |
| 2 | Contender | 3 |
| 3 | Challenger | 5 |
| 4 | Adversary | 7 |
| 5 | Strategist | 9 |
| 6 | Tactician | 11 |
| 7 | Professional | 15 |
| 8 | Battle Idol | 20 |
| 9 | Master | 25 |
| 10 | Grandmaster | 30 |
Pet shop reward eggs 5
Companion eggs you can only earn by climbing the league ladders.
A metal 'egg' capsule, ready to hatch! Part robotic, part organic, part liquid. The primitive anatomy of this creature's conscious organ belies a deep, calculating intelligence. Scans indicate the being within has the genetic potential to be focused and strategic.
A living, fertile egg, ready to hatch! It wails, sleepless. Scans indicate the being within has the genetic potential to be haunting and adrift.
A metal 'egg' capsule, ready to hatch! The shell crackles with an electronic energy; mutated by Atlantideum, neutralised by [ redacted ]. Scans indicate the being within is programmed to be tireless and gLaSs.
A living, fertile egg, ready to hatch! The serpentine foetus stares directly through the membrane of its egg. It watches. It waits. Scans indicate the being within has the genetic potential to be unblinking and slithering.





