Tidemark is a dice-driven, turn-based party roguelike. Roll for action points, choose who acts and who to target, and merge matching skills into stronger versions. Position your team across two rows, chart a route through three rising tides, and defend the crossing before its walls fall.

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About This Game

Each rising tide brings a new expedition to defend the crossing. Build a party of up to four heroes and choose your route across three stages and 27 nodes, from battles to rest stops and trading posts. Your defenses carry over between fights, so every delay matters.

Roll, then decide
Roll for action points each turn. Choose who acts, which skill to use, and who to target. Balance protecting your party, finishing enemies, and saving points for later.

Build around your skills
Two matching skills of the same rank merge automatically, up to rank three. With limited skill slots, decide whether to broaden your options or collect duplicates to create the centerpiece of your run.

Hold the line
Position your team in two rows to control range and counterattacks. Your defenses do not fully recover after every battle. Choose your path and fight efficiently to survive all three tides. Winning runs unlock ten ascending enemy strength levels.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

This game uses generative AI for some content created ahead of time: character and enemy illustrations, backgrounds, icons and effects, and store/promotional images (OpenAI image generation); background music (Suno); and the in-game text and its English and Japanese translations were written with AI assistance. All content was reviewed and edited by the developer before being integrated. The game does not generate any content with AI while you play and does not connect to any AI service.

System Requirements

Windows
macOS
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 64-bit
    • Processor: 64-bit dual-core processor
    • Memory: 2 GB RAM
    • Graphics: Vulkan 1.0 compatible GPU
    • Storage: 500 MB available space
    • Additional Notes: Keyboard and mouse.
    Recommended:
    • Requires a 64-bit processor and operating system
    Minimum:
    • OS: macOS 11 Big Sur or later
    • Processor: Apple Silicon or 64-bit Intel processor
    • Memory: 2 GB RAM
    • Graphics: Metal compatible GPU
    • Storage: 500 MB available space
    • Additional Notes: Keyboard and mouse.
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