Mosaic Labs raises $120M to scale 'Composer' AI for interactive storytelling

Gaming · 4 min read

Mosaic Labs closed a $120 million Series C, positioning Composer as a studio-grade tool for procedural narrative generation. Composer produces branching storylines, character arcs, and dialogue tuned to player behavior and stylistic direction from writers.

Investors cited growing demand from mid-size game studios and immersive media companies that want to reduce scripting bottlenecks. Mosaic is allocating funds to train multimodal models that can output not just text but voice lines and scene direction synchronized with animation cues.

The company also announced partnerships with two middleware providers to export Composer outputs into existing game engines, plus a companion editor for narrative designers to visualize branching structures and playtest sequences in real time.