Ok, there are a lot of problems that you are presenting to me, so I'll talk about each one separately.
Game screen
I didn't expect someone to have a lower resolution that the game's resolution. Perhaps going into fullscreen might help. I'll definitely look after this next update.
Tutorial
A tutorial will be added next update as there are many people saying that the game is difficult to understand, requiring me to give them a more detailed explanation of the game.
Buying factories
The game's main resource are coins. These coins can be obtained by clicking on asteroids with miner ships (such as the ones you spawned with at the beginning of the game). Give them time, as one ship takes 5 seconds to farm 2 coins. The asteroids will be eventually destroyed, so keep checking the miner ships. In the build mode, click the Factory and it will prompt you to place it on the map. If you don't have enough coins, you can't place a factory. If this happens, presa right click to get out of tiled mode.
Note: The structure you spawn with at the beginning of the game is a factory.
Buying ships
Buying ships can be done by clicking on a factory. This will bring up a menu similar to the build menu.
Buying ships works similar to buying this, except two things:
-Buying ships doesn't prompt you into tiled mode and instead spawns the ship next to the selected factory
-You can only buy a limited amount of ships per factory. This number can be seen next to the "Available ships" text. You can buy a new ship every 30 seconds, this can be seen under the "Available ships" text. Researching works in the same way.
Controlling ships
To control ships, click and hold, then drag your mouse. This will bring up a rectangle. Every allied ship in the rectangle will be selected upon release. To attack an asteroid/enemy, make sure you have some ships selected, then click on the enemy. Miner ships cannot attack enemy ships, and fighter ships can attack asteroids, but will not receive any coins.
You can have an easier time controlling the ships by grouping them. To do this, select some ships, and press Left CTRL+a number from 1 to 9. After that, pressing a number will select all ships associated with the group that number represent. Pressing again that same number will move your view to those ships.
Note: Associating ships with a group will kick all other ships associated with that same group, unless they are also selected upon association.
Objective
The objective is to destroy the 4 enemy ship spawners that are on the 4 sides of the map. You can view them easier by zooming out and moving your cursor to one side of the screen.
Too many controls
Indeed, there are many controls to be used. Not all controls are essential, but they will help you a lot if used effectively.