Asteroid Games - Past & Present

Task One -

(Research/ find (6) examples of “Asteroids” games from the past to the present.

Summarise their similarities and differences. Think about:

Asteroids

I searched for Asteroid games on Google the first game I found was what i assume to be the first/original version of the Flash Game Asteroids.
This Game can be found on this website - http://www.play.vg/games/4-Asteroids.html

This is just a basic black and white graphics game. 

You have to tap the space bar to shoot the asteroids, this makes them split into smaller asteroids, when they get to a smallest of sizes the disrepair, you can rotate the turret by simply moving the mouse to the direction you with to shoot at.

Ever so often an alien spaceship will appear, this is the games way of going to the next level, as after you destroy the spaceship more asteroids aper, they become larger making them more difficult to completely destroy. Although the levels of the game are not shown nor are they displayed. 

This game has a point system for every large asteroid you destroy you get 20 points for ever medium sizes asteroids you destroy you get 50, for every small asteroid you destroy you destroy you get 100 points.
This game is the most basic of asteroid Games, this hasn't helped me to expand my ideas or given me any inspiration to further my game. 
(sound effects)

Abstract Sea
This game is just a spin off of the original game - asteroids they they have changed the theme to under water. I like the the layout of the score system as it is underneath the player rather then in the corner there for you can see your score whiles you keep your concentration on the game at all times rather then having the score distract you by being in the corner.
I found the game quite difficult to play as it takes a few hit for the submarines to blow up and they move around completely randomly and too quick for the torpedo to hit the boat. The replay value for this game for me isn't very high as I get very frustrated with it and I die too quickly for me to want to try and beat my score. The graphic style is very clean the colour scheme is blue and white. the water is potraid by picolated squaires comimg off of the enemys ships this gives the illusion that ship is moving throught the water. There aren't a lot of soud effect exsept from

·         Replay values

·         Difficulty levels

·         Scoring systems

·         Themes/graphic styles

·         Animations

·         Sound effects)