Green Submarine drops you into a strategy challenge you can start in a couple of seconds. You can jump in for two minutes or lose an hour to it; either works.
About Green Submarine
Green Submarine. Fight with warships, helicopters, atomic submarine and aircraft carriers. There will be a surprise at the end of the game.
How to play Green Submarine
There is very little to learn before your first run. You will want a keyboard for this one — the arrow keys / WASD carry most of it, and the table below has the rest. It fills the player in landscape, so use the fullscreen button on desktop and turn your phone sideways on mobile. There is no penalty for failing, so push a little harder than feels safe.
Controls
| Input | Action |
|---|---|
| Mouse | Navigate menus and interact |
| Arrow keys / WASD | Move |
| Spacebar | Primary action |
On mobile: Tap and swipe on screen. Turn your phone sideways — this game is designed for landscape and fills a horizontal screen.
Why it is worth playing
Green Submarine does one thing and does it properly. There is no bloat around the edges, which is exactly what you want from a strategy game in a browser tab. The result is something you can pick up cold months later.
At a glance
- Free to play with no account required
- Runs in the browser — nothing to download or install
- Landscape layout with fullscreen support
- Keyboard and mouse on desktop, full touch support on mobile.
- Added to our catalogue from a 2023 release
Frequently asked questions
Is Green Submarine free to play?
Yes, entirely free. Green Submarine costs nothing to play, asks for no card and has no paid tier hiding behind it.
Do I need to download or install anything?
No download, no installer, no plugin. Green Submarine is HTML5, so the browser plays it directly.
Can I play Green Submarine on my phone?
It works on phones and tablets. Tap and swipe on screen. Turn your phone sideways — this game is designed for landscape and fills a horizontal screen.
What are the controls for Green Submarine?
Keyboard and mouse on desktop, full touch support on mobile. Mouse — navigate menus and interact; Arrow keys / WASD — move; Spacebar — primary action.
Can I play Green Submarine fullscreen?
Yes. Use the fullscreen button in the top-right of the game player to expand it to the whole screen, and press Escape to come back out.
