Halo font
The Halo logo is custom lettering, not a font you can install.
The sources say this indirectly: Archived Bungie Weekly Update (Sep 2006): artists drew the Halo 3 '3' to match the existing HALO letterform; Bungie artists finalised it.
What the Lettering Looks Like
Very wide, low, flat sans-serif capitals in steel blue with angled cuts; the O is drawn as a tilted ring around a small central dot, echoing the ring-shaped world.
Free Open Fonts with a Similar Feel
Chosen by eye from the style hubs for a similar feel; not a measured match.
Published Sources & Citations
Everything this page says about the logo comes from these pages:
Archived Bungie Weekly Update (Sep 2006): artists drew the Halo 3 '3' to match the existing HALO letterform; Bungie artists finalised it. — “With the help of Lorraine McLees and a few other Bungie artists, the letterform was tweaked and finalized” (wiki.halo.fr, read 2026-10-22)
Fan-Made Recreations
Community-made fonts inspired by the game title. FontsLike describes and links to their author pages only; we do not host or distribute these files.
Halo
Fan-made; check its licence before commercial use.