The Deadseat, developed by Curious Fox Sox, builds its horror around the deceptively simple, claustrophobic setting of a car ride — a confined space that leaves nowhere to run and nothing to do but confront whatever unsettling presence has joined you. Confined-space horror is an effective, low-budget-friendly technique since the limited environment forces tension to come from atmosphere and implication rather than elaborate set pieces.
Games set in a single confined space rely heavily on subtle environmental and audio cues to build dread, since there's little room for the kind of exploration-based tension that larger horror settings typically use.
The goal is to survive the unsettling car ride from start to finish, staying alert to whatever sinister presence has joined you in the confined space.
Its claustrophobic, atmospheric horror makes for a genuinely tense short experience. GBK Games also has more atmosphere-driven horror like Seven Days in Purgatory.