kgoldrunner: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/kgoldrunner - from package: kdegames

You may install the required package with command yum install {package}

Error in other languages:
kgoldrunner: bevel nie gevind nie
kgoldrunner: comandă negăsită
kgoldrunner: comando não encontrado
kgoldrunner: commande introuvable
kgoldrunner: command not found
kgoldrunner: käsku ei ole
kgoldrunner: không tìm thấy lệnh
kgoldrunner: komanda nerasta
kgoldrunner: Kommando nicht gefunden.
kgoldrunner: kommandot finns inte
kgoldrunner: komut yok
kgoldrunner: nie znaleziono polecenia
kgoldrunner: níor aimsíodh an t-ordú
kgoldrunner: no se encontró la orden
kgoldrunner: no s'ha trobat l'ordre
kgoldrunner: opdracht niet gevonden
kgoldrunner: parancs nem található
kgoldrunner: perintah tidak ditemukan
kgoldrunner: príkaz nenájdený
kgoldrunner: příkaz nenalezen
kgoldrunner: команда не найдена
kgoldrunner: командата не е открита
kgoldrunner: 命令找不到
kgoldrunner: コマンドが見つかりません