Frostrain 2
Steam News 13 January 20264mo ago

0.7.1 Update

Balance Patch Synergies Explorers’ Guild Exploration Record 140: When you have additional movement speed, each 1% increased movement speed increases the Happiness production of your Explorers’ Guild trains by 2% → Each…

Update log

Full Frostrain 2 update

The complete published notes, normalized for clean reading and source attribution.

Extracted changes

0 fixes0 additions5 changes1 removal
  • Gameplay
changedExplorers’ GuildExploration Record 140: When you have additional movement speed, each 1% increased movement speed increases the Happiness production of your Explorers’ Guild trains by 2% → Each 1% additional movement speed now increases the Happiness production of your Explorers’ Guild trains by 3%.
changedExplorers’ GuildExploration Record 999: For every 100 Exploration Records, movement speed increases by 2% → Each 1% additional movement speed now increases the Happiness production of your Explorers’ Guild trains by 7%.
changedChildren of the EngineThe chance for high-quality artifacts to appear has been reduced.
removedChildren of the EngineArtifacts that are refused are now completely removed from the pool and will no longer appear again.
changedTransportationTransportation (4): When acquiring Supplies, there is a 45% chance to gain one additional Supply → The chance has been increased to 55%.
changedShadow Traders AssociationThe chance for Platinum shop artifacts to appear has been increased across all stages.

Balance Patch

Synergies

Explorers’ Guild

  • Exploration Record 140When you have additional movement speed, each 1% increased movement speed increases the Happiness production of your Explorers’ Guild trains by 2% → Each 1% additional movement speed now increases the Happiness production of your Explorers’ Guild trains by 3%.
  • Exploration Record 999: For every 100 Exploration Records, movement speed increases by 2% → Each 1% additional movement speed now increases the Happiness production of your Explorers’ Guild trains by 7%.

Developer Comment:

This effect was originally added to allow the Explorers’ Guild to synergize with movement speed. However, it ended up threatening the position of movement-focused builds themselves. In addition, since this synergy could be activated with a relatively small requirement of two units, it became excessively powerful when combined with the artifact Guild’s Compass, even with a single train. These changes aim to address that issue.

Children of the Engine

  • The chance for high-quality artifacts to appear has been reduced.

  • Artifacts that are refused are now completely removed from the pool and will no longer appear again.

  • Children of the Engine (2): Faith requirement 250 → 300

  • Children of the Engine (6): Faith requirement 150 → 180 (requires 40% less Faith overall)

  • The amount of Faith gained when refusing gifts is now affected by synergy effects. For example, at 6 synergy, the Faith requirement increase changes from 15 → 9.

Developer Comment:

The Children of the Engine were showing excessively strong performance and required adjustment. Many players also reported frustration with unnecessary artifacts appearing repeatedly. To address this, refused artifacts are now removed from the pool. Additionally, by reducing the absolute Faith requirements, we resolved the issue where refusing too many artifacts made pursuing 6 synergy unnecessary.

Transportation

  • Transportation (4)When acquiring Supplies, there is a 45% chance to gain one additional Supply → The chance has been increased to 55%.

Developer Comment:

Transportation is a useful synergy, but the 4-synergy effect was underperforming compared to the 3-synergy effect. We have slightly increased the probability and will continue to monitor its performance.

Shadow Traders Association

  • The chance for Platinum shop artifacts to appear has been increased across all stages.

  • Nectar: Happiness production of Shadow Trader trains +20% → +25%

  • Whiskey: Happiness production of Shadow Trader trains +15% → +20%

  • Cheap Liquor: Happiness production of Shadow Trader trains +10% → +15%

  • Cigar: Overachievement chance +6% → +8%

  • Premium Cigarette: Overachievement chance +4% → +6%

  • Cigarette Butts: Overachievement chance +3% → +4%

  • Golden Statue: Overachievement production +5% → +7%

  • Marble Statue: Overachievement production +3% → +5%

  • Clay Statue: Overachievement production +2% → +3%

Developer Comment:

The Shadow Traders Association was not performing its intended role as effectively as expected. While collecting many artifacts was appealing, shop artifacts themselves lacked sufficient impact, reducing incentives to purchase them. These changes strengthen shop-exclusive artifacts and, in turn, the overall power of the Association.

Artifacts

Silver

  • Equivalent Exchange: Receive 1 artifact Drone Supply, lose 3 Passengers → Receive 1 artifact Drone Supply, lose 2 Passengers

  • Invisible Hand: Silver → Gold

Gold

  • Birth Certificate: Gain 4 Passengers → Gain 3 Passengers

  • Fruit of Patience: Gold → Platinum

  • Übermensch: All trains gain +1 Happiness. This value increases by 3 each time Happiness reaches 0 → The increase is now 4 each time Happiness reaches 0.

  • Lynceus’ Eye: Sight +2 → +3

  • Dispatch: Overachievement chance +10%, overachievement production +10% → Overachievement chance +12%

  • Hot Wallet: Happiness 80~+160 / cycle → -60~+120 / cycle

Platinum

  • Automated artifact Assembly Device: Gain 1 artifact Drone Supply every 2 days (Warning: may malfunction) → Gain

Source

Steam News / 13 January 2026

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