Supreme Ruler uses a limited number characters so only certain special characters are supported. These are the supported special characters and their ASCII code;
- Â 0194
- Á 0193
- Ä 0196
- É 0201
- Ë 0203
- Î 0216
- Í 0205
- Ö 0214
- Ó 0211
- Ô 0212
- Ü 0220
- Ú 0218
- Ç 0199
- ß 0223
- Š 0138
- Ý 0221
- Ž 0142
- Ñ 0209
- ñ 0241
Other special characters have been replaced as follows;
- Å A
- Ã A
- Ą A
- Ā A
- À A
- Æ AE
- Ê E
- Ė E
- È E
- Ę E
- Ī I
- Ï I
- Ì I
- Î I
- Ø O
- Ő Ö
- Ŏ O
- Ū U
- Ŭ U
- Ć C
- Ł L
- Ń N
- Ş S
- Ś S
- Ţ T
- Ź Z
- Ř R
- Ĩ I
- Ĕ E
- Đ D