Dice-envy is a project mainly written in ..., it's free.
A test
mkdir rpg-onslaught
cd rpg-onslaught
rvm --create --rvmrc 1.9.2@rpg-onslaught
gem install rails --pre
rails new ../rpg-onslaught -O -T
bundle
sudo mongod
or mongod
rails generate mongoid:config
rails generate rspec:install
rails generate cucumber:install