日本語は下にあります。

About

Swaplines is a simple puzzle game: gather each color of ball onto its matching LINE. The more you play, the more the tricks click. Endless, randomly generated puzzles, and a cute little town in the background that grows with every puzzle you solve.

• Developer / Publisher: coznssoft (solo developer, Japan)
• Release: October 20, 2026, 7 AM PDT
• Platform: Windows (Steam)
• Price: US$4.99 (20% off for the first 7 days)
• Languages: English, Japanese, Simplified Chinese, Traditional Chinese, Korean, German, Spanish, French, Italian, Russian
• Steam: https://store.steampowered.com/app/5354440/
• Trailer: on the Steam page

Features

• Only two actions: drag to spin a LINE, click a switch to swap balls
• Randomly generated puzzles that are always solvable and never run out
• A cute little town in the background grows as you solve
• As many saves as you like, each growing its own town
• Mouse only, no time limits, bossa nova soundtrack
• Accessibility: a high-distinction color palette and a different ball shape for each color

Streaming and videos

• You are free to stream Swaplines and make videos of it, including monetized ones. No need to ask or let us know.
• This applies before launch too.