Construct 2
Godot Engine
GDevelop
Unreal Engine
BYOND
Corona SDK
Defold Engine
Unity
CARE
Habit Story by Two Story
BurnoutIndex
Marlee
ClearMind
Holly Health
Personas
Deep Personality
Godot Engine - Feature-packed 2D and 3D open source game engine.
Habit Story by Two Story - Upgrade your habits.
GDevelop - GDevelop is an open-source game making software designed to be used by everyone.
BurnoutIndex - Check your burnout risk. Backed by science, forever-free.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
Marlee - Rapidly work better, together