Another freebie from Indiegala - this one has been free before so you might already have it in your Showcase library.
It is on Steam but it is not purchasable in Australia!
Here is the Steam page for info: https://store.steampowered.com/app/98500/Naval_Warfare/
From the website:
In a fantasy world of Victorian architecture, war is raging between the industrial superpowers. As Commander of a Naval Super-Destroyer, it is your duty to destroy the enemy's mighty Boss Units in a military campaign of epic proportions in, under and above the surface. If you are to emerge victorious from a variety of challenging scenarios, you must lead your troops against wave after wave of massive attacks from ships, planes and gigantic Special Forces.
- Destructive: Powerful weapons with many lethal upgrades
- Comprehensive: Great variety of enemy units with ships, submarines, planes and futuristic vehicles
- Explosive: Challenge your friends in the immensely variable multi-player mode or play alongside them against the PC in Co-operational Mode
- Impressive: An exciting story-line plus sensational graphics with incredible effects and stylish cut-scenes guarantee maximum enjoyment.