Naval technology tree
Hearts of Iron IV · Tech / Research
Art style Painterly illustration
About this game
Developer: Paradox Development Studio · Publisher: Paradox Interactive · Platform: PC (Steam) · Art style: Painterly illustration · Screen type: Tech / Research
More Hearts of Iron IV screens in the Gallery
What to study
A tech tree laid out as a timeline: hull classes in rows, years in columns, so the tree's shape itself teaches naval history's pace.
Patterns
How the screen is arranged.
Components
Parts on screen.
Screen inventory
- hull class rows
- year columns 1922-1944
- ship statistics card
Top 3 colors
#0c0c0a 34%#181816 25%#5c574d 18%
Top three palette colors by share. The remaining colors make up the rest.
Source and credit
© Paradox Development Studio / Paradox Interactive, Hearts of Iron IV screenshot: Steam store page, shown for design study and commentary. PlayCraft is an unofficial fan project, not affiliated with or endorsed by Paradox Interactive.
Source tier 2 (publisher-released) · screenshot: Steam store page · Steam page
Source details
Fetched 2026-10-17. verified 2026-10-17: frame inspected visually; real game UI (HUD, menu, or panel) confirmed visible
Paradox EULA Section 6: free access, own commentary required
Rights holders: see Copyright & takedown.
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