run-game: 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 Debian possible default full paths are:

/usr/bin/run-game - from package: ulatency

You may install the required package with command apt-get install {package}

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