Introduction

Couch Co-op Builder configures local multiplayer joining, independent lobby navigation, character selection and gameplay handoff for Unity uGUI and the Input System. Optional integrations provide owned gameplay actions, saved binding profiles and Shared Camera / Split Screen management. Your game supplies its UI design, gameplay rules, movement and camera follow behavior.

Start with Tools > LevelArgento > Couch Co-op Builder > Setup Wizard. Smart UI Focus & Navigation is included; no separate purchase is required.

Player scope

Workflow / example	Capacity
Framework and Existing Canvas	1–8 local players; typically 2–8 for co-op
Supplied authored lobby templates	Up to 4 visual player slots
Rocket Rumble 2D / 3D	2–4 players
Split Screen Playgrounds	1–8 players

For five to eight lobby players, provide your own P1–P8 visual roots and use Existing Canvas. The Wizard wires those authored controls; it does not generate additional graphics. Both the lobby and your gameplay scene must accommodate the chosen capacity. More players/cameras require profiling your own content and hardware.