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Turn based tactical game about war at sea between British Royal Navy and Imperial German Navy during World War I.

Key features:

  • Advanced damage model of ships. All ships are close to their historical prototypes.
  • High influence of visiblity and weather conditions.
  • Damage control system. Player can manually manage crew to repair modules, patch holes, fight fire, and so on to prevent ship from exiting battle and sinking.
  • Fleet commander career single player campaign.

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Many interesting problems arise when testing the game. One of them is the practical impossibility of sinking a heavily armored ship with artillery fire. Most shells hit the topside of the ship. When some of the shells occasionally hit the underwater part of the hull a player can effectively deal with it by water pumping and sending crew to patch holes.

Step #1: Rebalancing

Something had to be done about it and the first thing that comes to mind is rebalancing the damage control to make it less effective. It includes reducing the performance of water pumping systems (historical performance values are unknown for most ships planned for the game) and increasing the time that crew spends on holes patching. Another value to increase is the speed of movement of water when flooding through a hole. This gave results. SMS Scharnhorst that is our ‘guinea pig’, now can be sunk by heavy 12 inches (305 mm) shells. But it may take many dozen hits to sink her, which is far from historical reality. It seems to be no choice other than adding few new game mechanics.

sms Scharnhorst as target ship

Step #2: Reopening of patched holes

Previously, the player could forget about the hole in the hull of the ship immediately after it was patched. Now the old patched holes will reactivate if hit by the blast wave. So a shell detonated in a compartment is likely to open many of near patched holes and they will have to be patched again.

holes reactivation gif


The meaning of this is that damage holes can be patched well only in a shipyard. At sea the crew uses prefabricated leak stoppers or even wooden plugs, clothes and rolled mattresses to temporary seal the hole. And of course these are very wonky patches that can easily be broken by a blast wave.

Step #3: Structural damage

When a big explosion occurs or a heavy shell hits a hull of a ship, its frames, ribs and sheathing sheets suffer from great force. This force may deform frames and ribs and loosen their fasteners with sheathing sheets. And leaks may open even if the ship’s armor has not been pierced. The more acute the angle of shell hit the greater the leakage. These leaks are minor but the player can’t eliminate them.

structural damage


Step #4: Shell debris

Previously, the only damage effect of a detonated shell was a blast wave, modeled as a sphere with an expanding radius and accordingly a reduced damage force. Now, a number of debris is also launched from the center of the explosion in random directions. A total mass of the debris is a mass of the shell minus a mass of explosives therefore the armor-piercing shell generates more debris than the high-explosive shell of the same mass. The debris flies at a significant speed (speed of sound currently), but they lose it very quickly. They make many holes in sheathing sheets, bulkheads and decks. These simultaneously appeared holes can become a big problem for damage control of the ship, so shells that exploded inside the ship are much more dangerous for now.

shell debris



Conclusion

Our SMS Scharnhorst now sinks after 23 hits of 12 inches (305 mm) shells, which is much better than practical impossibility to sink in the beginning. Also many of the hits occurred in superstructures so the actual number of hits affecting the ship’s buoyancy is even less.

Scharnhorst about to sink

The new mechanics gave us several new parameters for balancing as well. For example, we can increase the number of holes and damaged modules by increasing the number of debris per shell, or decrease the number of debris but make each of them more deadly due to the greater mass. That’s all for today.

Good luck.

Dev blog #6. Torpedo firing AI

Dev blog #6. Torpedo firing AI

Feature 1 comment

A description of a logic for aiming and choosing a number of torpedoes used by a game AI for torpedo firing.

Dev blog #5. AI tactics of artillery combat

Dev blog #5. AI tactics of artillery combat

Feature

Overview of the principles of AI maneuvering in artillery combat in Naval Hurricane game.

Dev blog #4. Damage control

Dev blog #4. Damage control

Feature 2 comments

Quick overview of damage control system in Naval Hurricane game.

Dev blog #3. How ships work. Modules and subsystems.

Dev blog #3. How ships work. Modules and subsystems.

Feature

Quick overview of primary subsystems and modules of ships in the game.

Comments
EXCELLION36
EXCELLION36

Nice game. One question, how do you plan to do the campaign?. Is it like Pacific Storm, in which you have a world map and have to build ships and conquer territories. Or is it more linear?. Thank you :)

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Efril Creator
Efril

Campaign is like 'admiral's career' where you start with few small old ships (or even single ship) and gain 'reputation points' by performing dynamic quests or 'free hunt'. Player does not build ships. They are unlocked for purchase for 'reputation points' based on player level and current in game date. Conquering territories is not the main goal of the game in campaign. I'm thinking about something like 'strategic balance' which increased in favour of player when destroying enemy maritime trade, capital ships, successfull support of land offensives including landing operations.

Reply Good karma+2 votes
Joseca
Joseca

Looks great. Wish it had been a real time game instead of a turn based one though...

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Efril Creator
Efril

Unfortunately you may need few extra hands to manage 3 weapons groups of each of your ships in real time :).

Reply Good karma+2 votes
Guest
Guest

Nice, very nice :)

Reply Good karma Bad karma+1 vote
loketuff12
loketuff12

cant wait to play this man :D

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Naval Hurricane
Platforms
Windows
Developer & Publisher
Efril
Engine
Unity
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Single Player
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Indie
Twitter

Latest tweets from @navalhurricane

Posted the new article about an interesting problem occured during testing of ships damage model in Naval Hurricane… T.co

Jul 21 2020

RT @DrydockDreams: Sure thing! This is what inner patrols are for. Cruising around "Torpedo Junction" without a few ASW TBFs up in the… T.co

Jul 3 2020

This is the first time my ship has been sunk by artillery of an enemy AI controlled ship. It took 38 hits of 305 mm… T.co

Jun 24 2020

RT @vanguard1917: Remembering on both sides, all those who participated and who were lost, 104 years ago. #BattleofJutland #JutlandT.co

May 31 2020

Another short video for #screenshotsaturday. Few water splash effects inside. #games #indiegames #indiedevT.co

May 2 2020

The first three of them are probably the best colorization of marine photos I ever seen. Amazing work. T.co

Apr 30 2020

Just a short video of main menu scene of Naval Hurricane recorded for #screenshotsaturday . Inspired by the amazing… T.co

Apr 25 2020

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