I’ve recently rediscovered great online fontmaking tool called Fontstruct. It has great database of fonts you can choose from and it let you make your own. All fonts you make you can export to TTF and use in your games. Now there’s no excuse to using Times new Roman all over again (unless game is for gamejam and you don’t have enough time to make font)!
Tool homepage: fontstruct.com
Also since tool is made in Flash, it is platform-agnostic so it works on Linux too.