If you don't branch out and expand beyond the bog-standard, yeah, eventually it'll all feel the same.
Edit: Some recommendations below. These aren't even wild experimental/arthouse games, just slightly more creative.
- Outer Wilds
- Disco Elysium
- Rhythm Doctor
- Return of the Obra Dinn
- Death's Door
- Hotline Miami
- The Talos Principle
- The Witness
- Into the Breach
- Invisible Inc.
- What the Golf?
- The Forgotten City
- Frostpunk
- Slay the Spire
- This War of Mine
- Hades
- Dead Cell
- Elsinore
- I Am Dead
- Subnautica
- Gunpoint
- Katana: Zero
- Hollow Knight