Here is a gallery of concept art from the development of Oxenfree.
Character Art[]
Alex Concepts
Alex Concepts
Alex Concepts and Character Color Concepts
Clarissa Concepts
Character Concepts
Alex Jumping
Alex Character Studies
Scared Ren Sketch
Alex and Jonas Sketch
Alex and Clarissa Sketch
Alex Sketch
Nona and Clarissa Sketch
Oxenfree Key Art
Environment Art[]
Early Environment Concept Art
Environment Test
World Lighting Test
Beach Concept Art
Environment Test
Visual Target Process
Adler's Pier Concept Art