50+ New Cards, 30 New Artifacts, Performance Boost & Playtest Update!

major update

Astro Company · published · build 20359679

Today we are excited to release the biggest update so far for ASTROCOMPANY:
More than 50 new cards, over 30 new artifacts, massive performance improvements, and a fully updated Playtest build now available on Steam.

This update expands build variety, late-game chaos, and the number of possible broken synergies you can discover.


New Artifact System

Artifacts are powerful, passive upgrades that can dramatically change how your towers behave.
They are run-defining, chaotic, and often completely break the rules.

Here are a few examples from the new lineup:


Double Chain

Tesla Towers have a 10% chance to fire double the number of chains.
Perfect for chain-reaction builds and scaling damage loops.


Gatling Gun Overcharge

Every 10 seconds, Gatling Guns gain 4× attack speed for 3 seconds.
A burst-damage monster for shredding elite enemies and bosses.


Missile Split

Missile Towers have a chance to split into four smaller missiles on hit.
And yes… the split missiles can split again.


Over 30 New Artifacts in Total

This update introduces more than 30 unique Artifacts, including:

  • Projectile-replication effects

  • Time-based tower overdrives

  • Damage multipliers tied to chaining, orbiting, or hit streaks

  • Rare legendary effects that completely transform a tower’s behavior

These are only a small sample - we’re experimenting with dozens more for upcoming updates.


50+ New Cards

Alongside Artifacts, this update adds over 50 new cards for towers, the Core, economy, and projectiles, allowing:

  • deeper build variety

  • new strategies for early, mid, and late game

  • more synergy paths

  • stronger scaling options for endless runs

Expect every run to feel more unique than ever before.


Performance Improvements

We also spent considerable time improving late-game performance:

  • More efficient enemy simulation

  • Optimized tower targeting

  • Reduced stuttering during large waves

  • Better handling of projectile swarms (especially useful for Missile Split!)

  • Faster overall update loops

These changes should noticeably improve FPS during heavy scenarios with thousands of enemies.


Playtest Updated

The newest build - including all cards, all artifacts, and the performance overhaul - is now live in the Playtest branch.

If you’re already in the Playtest, just update the game.
If not, request access on the Steam page - approval is automatic.

Your feedback keeps shaping the game. Thank you!


What’s Next

We’re now working on:

  • more artifacts

  • new towers

  • bosses

  • visual upgrades

  • improved UI / card animations

  • more late-game scaling options

Stay tuned - even bigger updates are on the way.


Thank you for playing and supporting ASTROCOMPANY!
Build your defenses, break the game, and survive as long as you can.

50+ New Cards, 30 New Artifacts, Performance Boost & Playtest Update! · Astro Company patch notes · SteamPeaks