Skip to Content
Tier
Tier Your gaming journal
Get
Best games

Best Xbox One games of 2015

The 61 best Xbox One games released in 2015, ranked from 31,767 critic and player ratings.

The best Xbox One game of 2015 is Undertale, with a critic score of 96/100 — updated November 2026.

How this ranking is built

  • Games are ranked on the aggregated critic score out of 100 imported from IGDB and Metacritic, never on Tier's own grades.
  • A game only enters the ranking with at least 80 external ratings, so a single enthusiastic review never outranks a proven classic.
  • Community grades from F to S are shown next to every game, and only stated as a fact above 5 Tier ratings.
  • Release window covered: 2015.
  • 50 games are listed on this page, carrying 31,767 ratings between them.
  • Rankings are recomputed hourly; this one was last rebuilt on 13 November 2026.

Top 50

Played them? Give your tier with the + next to each game. No account needed to try — create one to keep your tiers.

What is the best Xbox One game of 2015?

Undertale currently tops the ranking with a score of 96/100 across 1,901 ratings. It holds a A grade from the Tier community — updated November 2026.

How is this ranking built?

Games are ranked on their aggregated critic score out of 100, with a minimum vote threshold so a single glowing review never outranks a proven classic; the Tier community's own F-to-S grades are shown alongside each game.