An unidentified variant of the Type-1 Energy Sword appears in the Halo: Evolutions short story Headhunters, in Halo 2: Anniversary's Multiplayer, in the Halo: Tales from Slipspace story Hunting Party and finally in Halo Wars 2. It seems to be mainly employed by Covenant Special Operations. Its only major difference to its normal counterpart is that the blade glows with a red coloring, rather than the traditional blue.
- In Halo 2: Anniversary it is solely used as the weapon wielded by infected players in the Infection gametype.
- Halo: Evolutions
- Headhunters (First appearance)
- Halo 2: Anniversary
- Halo: Tales from Slipspace
- Halo Wars 2