GravitySimulator is Freeware and can be used on any system for free.

If you want to make a donation to the gravity simulator project to help with the development or you just think it's so fantastic that you feel we deserve it! (perish the thought) then you can do so using the button below.

Please note that for any donation made we will pass 50% to charity. This is currently Hope House Childrens Hospice which provides care for terminally ill children. If you really don't want to give us anything but just want to donate to Hope House then click Here to go directly to their donations page.