My first main concern when it comes to buying assets is compatibility. They have to be compatible with other assets I'm using, period.

I need a complete set or I should say plenty of assets but most of the time, they are too different to each other.

My second main concern is suit my design. Ex: I want a dragonian who could attack in 5 directions. If an asset pack is missing just one direction attack sprites, then I won't buy it. I know I'm very picky but I don't want to compromise my design just because the asset is missing required sprites.

I want my games to have a consistent style.  Therefore my concerns when buying asset packs are:

• How similar is it in style to what I already have?
• Is there a lot of stuff in the same style?
• Do I have the skills to produce additional assets in the same style?

Type of asset/look, and licensing rights.