Roller Coaster by Nick Curtis is a free retro slab serif with oversized, blocky letterforms. Broad vertical strokes meet sharp slab feet, and rounded inner shapes cut through the dense silhouette. The result feels sturdy and theatrical.
Amusement parks and carnival themes are the clearest match for its showbill-like lettering. Music posters, playful packaging, and event branding also suit its nostalgic weight. With illustrated rides or fairground signs, the letters become part of the scenery rather than a caption.