GCompris uses the Gnucap electric simulator as a backend. You can get more information on gnucap at &lt;http://www.gnu.org/software/gnucap/gt;.
Darvanerez amredoù tredanel Gnucap zo arveret gant GCompris. Evit gouzout hiroc'h diwar-benn Gnucap, kit betek : &lt;http://www.gnu.org/software/gnucap/gt;.