Nautilon Submarine Quest is a retro styled underwater shooter, inspired by classic shoot em up (shmup) games like Seaquest on Atari 2600.

Dodge and shoot different types of submarine enemies and retrieve the gold for score. Look out for dropped power ups, they help your mission with weapon upgrades and health. Attention to the oxygen indicator, you must resurface to refill before it ends.

Game features:

- Original pixel art based graphics,

- Retro styled 8/16 bits sound effects,

- Original music composed with virtual synthesizers modeled on classics like Yamaha DX7, and sampled instruments like Fender guitars and Rickenbacker bass.

- Seven levels of weapon shot types with different usage styles.

- Simple fun arcade game play, try your high score as speed increases. Strategically decide the best playing positions and power ups to reach for accordingly to current game state (oxygen, health and weapon level).

Controls:

- Directional keys or AWSD to move,

- Space or Ctrl to shoot,

- P to pause/unpause.

Power ups:

- P (orange): increases your submarine weapon level,

- Plus sign (blue): increases health,

- B (red): bomb, destroys all submarine enemies on screen.

Combo chaining system:

When you eliminate enemies in sequence under two seconds between them, a percentage of points proportional to the number of enemies destroyed is added to the points of the last enemy hit, allowing bigger scores. The bluish hexagonal timer showed next to your submarine when you eliminate an enemy counts that two seconds. For example, on a second hit under two seconds, a submarine worth 100 points gets 20% more points (120), the third one in sequence gets 30% more points and so on.

Development:

This is a solo developed part-time dedication indie game, please report some bug that you may find. It's on alpha development stage, more features like different power ups and enemy types are planned if there's people interest and positive feedback.

Thanks for playing!