[color:"orange"]What kind of company gets subsidised right now that is similar to a gamedeveloper?[/color]
Movie and TV studios get tax breaks to attract them to certain cities / countries.
In general, there are all kinds of companies that get tax breaks or other subsidies to move to or stay in certain areas, or to help a fledgling or struggling industry.
[color:"orange"]Or is it only because 'other (the French) governments subsidise, and thus the Belgium government should subsidise to'.[/color]
It is more that other countries giving tax breaks gives Belgium a disadvantage when it comes to attracting investment or publishers.