A sudden change of circumstances isn’t a good reason to start a business (unless you have spent the previous few months planning to do so). Being made redundant can be a stressful event and for that reason isn’t ideal for planning a company. There is a lot of planning and research that should be undertaken before pressing the launch button on any new business venture and computer game development is no different. This research should be done in your spare time, while earning a salary (but not in your employer’s time), because once you press the launch button you will start burning your own money and you will need every penny of that to get from zero to break-even as a start-up.
Of course there are exceptions to every rule 
Sometimes redundancy can be the spur that makes you finally do something you have been thinking about for a long time – just make sure that this is the reason for pressing the red button and that you are not doing so just because you don’t know what else to do.
