PCGame

Iron Sea Defenders

Naval tower defense where you build cannons to repel fleets

Creobit · Published by 8Floor · Released Sep 9, 2016

ActionAdventureCasualIndieRPGSimulationSportsStrategy

Reviews
Very Positive
82% of 334
Recent reviews
Not enough recent
Players
1
daily peak, Oct 30, 2026
Steam Deck
Playable
Last update on Steam
8 years ago
Jun 9, 2018
Minimum PC
OpenGL 3.0 compliant with…
0.5 GB RAM · 0.1 GB disk
Full requirements

What is Iron Sea Defenders?

This historically themed tower defense game puts you in charge of defending a fort. You build cannons, save money, and use secret weapons against attacking enemy ships.

For you if...

  • +you like developing defenses through temporary and permanent upgrades
  • +you prefer level-based campaigns with selectable difficulty settings

Not for you if...

  • −you want complex tactics rather than straightforward tower placement

What players say

82% of 334 reviews are positive

Players praise the challenge. Older reviews repeatedly report crashes in the downloadable campaigns.

Screenshots and trailer

Iron Sea Defenders screenshot 1

Iron Sea Defenders system requirements

Minimum: OpenGL 3.0 compliant with…, 0.5 GB RAM, 0.1 GB of disk space.

As published by the developer.

Can my PC run Iron Sea Defenders?

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Minimum

OS
Windows XP SP3 or later
Processor
1500 MHz
Graphics
OpenGL 3.0 compliant with 1.0GB of video RAM
Memory
512 MB RAM
Storage
121 MB available space
DirectX
Version 9.0c

Does Iron Sea Defenders have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Iron Sea Defenders run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Some text entry requires manually opening the on-screen keyboard
  • All functionality is accessible with the default controller configuration
  • Shows Steam Deck controller icons
  • In-game text is legible on Steam Deck
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows
Achievements
12
Steam features
Family Sharing, Trading cards
Languages
Text only: English, German, Russian.

Does Iron Sea Defenders use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam

Tags

Recent updates

3 DLC available.

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