Gears Of War 3 did a great job representing submarine/underwater environement, too bad it's a very small portion of the game, and you can't pilot the sub.
I can't wait to see what a fully underwater dedicated game could look and play.
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Thanks for the reply ! For now i'm gathering ideas and inspirations, there's some interesting stuffs to dig on sonars and ballast systems interface designs. I'll draw some stuffs as soon as I have something
in Sub-marine HUD ? Ideas and inpiration threadComment by ErathicDecember 2013
In one of the concept art we can see some kind of minimal but very futuristic (and almost cartoony) UI and interior :