Full notes
Full Arcadium - Space Odyssey update
Read the full published notes in a cleaner layout. The original post stays linked below.
What changed
- Gameplay
- Balance
- Fixes
- Store
- UI and audio
- Security
Endless Leaderboards
The Endless mode now features leaderboards.
View Local, Global, Around Me, and Friends rankings
Access them directly from Endless mode screen or Game Over screen (Endless).

Gameplay Changes & Balancing
Planets & Gravity
Increased base gravity of planets.
Reduced excessive Cold planet frequency.
More Verdant, Heat, Lunar and varied planet types will now appear.
Added new planets, including new Lunar variants.
Small planets have been adjusted for better gameplay consistency.
Endless Mode Scaling
Aliens now scale better over time to avoid excessively long “endless” runs.
Alien Spawn Balance
Moon and Heat alien types now spawn more frequently.
Overall spawn imbalance across alien types has been corrected.
Star Heat
Heat damage from stars has been increased.
Fixed an issue where being inside a star could delay normal waves indefinitely.
Planetary Log Update
Added a Planets Harvested counter in the Planetary Log so you can track how many unique planet types you have discovered and depleted.

New Mission: Untouched & New Artifact: Wave Disruptor
Wave Disruptor makes wave aliens spawn farther away from the player, giving more reaction time and strategic space.
Living Sun Rework
Previously too stackable.
Now converted into a strong Active Item with increased damage.
Star Crucible Upgrade
Can now output multiple items at once.

New Item: Arcane Book
New Mythic item added to the pool.
Rift Merchant Update
Once all relics are collected, the Rift Merchant now sells 3 different fallback items instead of 3 revivals.
Missions & Achievements
Reduced grind requirements for certain missions and achievements.
Improved overall progression pacing.
Bug Fixes
Fixed softlock when playing as Neptune using The Hunt and dying by repeatedly crashing into planets during a swarm.
Fixed visual bug with incorrect displayed levels on equipped artifacts.
Fixed overlapping UI panels.
Fixed locked spaceship exploit that allowed selection of locked ships via details panel.
Fixed missing Game Over music.
Fixed issue where being inside a star could prevent wave progression.
If you are enjoying the update and have not left a review yet, consider leaving one on Steam. It makes a significant difference in visibility and helps the game grow.
Thank you!
[dynamiclink href="https://store.steampowered.com/app/2352670/Arcadium__Space_Odyssey/"]
Source
Changelog.gg summarizes and formats this update. Original post from Steam News. How we read updates.
