This patch includes adjustments to improve early-game playability, enhance quality of life, and balance the game.

New Feature Implementation

Save Function

Language selection now persists after closing the app.

Initial Equipment & Familiar Additions Based on Supporting Companies

Gehenna (Appears in all games) Water Conveyor x10
Lucifer Mining Goblin x2
Mammon Transport Raven x5
Leviathan Distillation Slime x1
Satan Blacksmith Salamander x1

Adjustment to How Recipe Modification Contracts Apply Effects

Effects now apply to recipes added after the contract is made
“Compression” and “Dilution” only affect the current recipe
Other contracts will also affect recipes added in the future

Balance Adjustments

The changes made in Patch 0.2.0 to bring Salamander and Slime usage closer together seem to have been generally well-received.
However, we've confirmed that Salamander's Nitro Loop has become too powerful against Slime's Alkaline Solution Loop, so we've reduced its power in various aspects.
Additionally, we've strengthened and adjusted various contracts to encourage more diverse victory strategies.

Additional Recipe Parameter Adjustments

Adamantite

Required quantity per item: 100 => 20

Pickaxe

Fuel required for crafting: 10 => 40

Alkali Crystal

Fuel required for crafting: 10 => 40

Nitro

Fuel required for crafting: 10 => 40

Coin

Fuel required for crafting: 40 => 160
Production Quantity 100 => 50

Existing Contract Parameter Adjustments

Lucifer

“Woodpecker Drilling”
Critical Mining Rate x0.05 => x0.1
“Sample Collection”
Resource Durability x10 => x5

“Tai Chi”

Work Speed Reduction x0.2 => x0.5

Critical Harvest Count Increase x10 => x4
“Certificate”
Certificate Granted 1 => 3
Rarity Uncommon => Rare

Mammon

“Plated Product Contamination”
Cash Reduction Effect Starting Cash Amount 1 => 3
Cash Reduction Amount 1 => 2
“Coin Minting”
Provider Mammon => Satan

Leviathan

“Acid Catalyst”
Rarity Uncommon => Common
“Sale of High-Concentration Chemicals”
Litmus Paper Grant Amount 1 => 3
Rarity Uncommon => Rare

Satan

“Ground Destruction”
Required Resources None => Fuel 5
“Make More”
Raw Material Consumption x2 => x3
Result Quantity x2 => x3
Rarity Common => Rare
“Load: Fireball”
Rarity Rare => Common
“Overheat”
Applies result quantity bonus to items that don't require fuel

Other Fixes

Expanded bottom manual hotbar size

That's all.
Only 2 days and a few hours left in the Playtest. Keep enjoying it!