I am planning on buying a game called "Don't Starve Together," but it requires 256 Mb of VRAM and I only have 130 Mb. I have a Windows 10 laptop if that helps. So is VRAM necessary and if so is there anyway I can increase it? Thank you 
Edit: Thank you all for your answer and for responding so fast!

Edit: Thank you all for your answer and for responding so fast!