New Light and Shadow 3D Puzzle Game "THANKS, LIGHT." Joins Steam Next Fest Starting June 15, 2026! New 60-Second Trailer Also Revealed
Game Source Entertainment (GSE) announced that "THANKS, LIGHT.", a 3D puzzle game developed by Korean studio Lightersgames, will officially launch on PlayStation 5 and Steam in September 2026. The game will participate in Steam Next Fest starting June 16, featuring a major demo update and a new trailer.
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[June 12, 2026, Hong Kong] Game Source Entertainment (GSE) announces the official September 2026 release of "THANKS, LIGHT.", a 3D portal-like puzzle platformer developed by South Korean indie studio Lightersgames, for PlayStation®5 and Steam. A free demo is currently available on Steam, and starting Tuesday, June 16, the game will participate in Steam Next Fest, accompanied by a major content update and a new 60-second trailer. Interested players are encouraged to play the demo and add the game to their wishlists.
The game's core mechanic revolves around manipulating light with a flashlight, challenging players to use their imagination to switch objects between 2D and 3D forms. Players will navigate a liminal space where geometry and physics intertwine.
Steam Next Fest Details
To celebrate its participation in Steam Next Fest, a major content update for the demo will be released. This allows players to experience the game's core "geometry and physics-based puzzles" ahead of launch.
Additionally, a new 60-second trailer for "THANKS, LIGHT." has been unveiled. This footage reveals previously unseen gameplay elements and expanding lore, offering a deeper dive into the game's appeal.
"THANKS, LIGHT." Demo Update Features
The demo for "THANKS, LIGHT." has undergone comprehensive optimization and content expansion. Key updates include:
- Content Update: A new playable stage has been unlocked. In addition to Chapters 1 and 2, Chapter 3 is now available for the first time, offering more intricate geometry and physics puzzles.
- Quality of Life Optimization: Based on player feedback, known issues have been fixed to ensure smoother puzzle-solving experiences.
- Subtitle Toggle: A subtitle ON/OFF feature has been added, allowing players to customize their viewing preferences.
- Original BGM: Completely new in-game background music has been implemented to enhance atmospheric immersion.
All new content will be available starting with Steam Next Fest. Players are invited to download the updated demo on Steam to experience the enhanced puzzles and wishlist the game.
Steam Next Fest Event Information
Steam Next Fest is a massive online celebration of upcoming games. For players, it is an opportunity to explore and play hundreds of demos ahead of release. For developers, it is a crucial time to connect with the community and gather valuable feedback. "THANKS, LIGHT." joins the event with its newly updated content and trailer.
Event Schedule:
Dates: Tuesday, June 16, 2026 – Tuesday, June 23, 2026
JST: Starts June 16 at 2:00 AM (PT: June 15 at 10:00 AM)
Truth Lies Behind Every Shape...
"THANKS, LIGHT." is the debut title from South Korean indie studio Lightersgames. It is a first-person puzzle platformer that follows in the footsteps of classics like "Portal," "Superliminal," "Viewfinder," and "The Talos Principle." The rules are remarkably simple: illuminating a shadow turns it into a 3D object, and absorbing the light reverts it to a 2D shadow.
A defining feature of the game is its lack of complex tutorials. Players must rely on observation, deduction, and trial-and-error to discover and understand the game's rules naturally, leading to deeper immersion in the puzzle-solving and the game world.
The title has already earned two awards at INDIECRAFT, South Korea's premier indie game festival, and was selected for the "Selected Indie 80" at Tokyo Game Show 2025. The free demo is available now on Steam. Step into this world striving for "perfection" and uncover the truth hidden between light and shadow, dimension, and perception.
About Game Source Entertainment
Game Source Entertainment is a Hong Kong-based publisher and distributor serving the Asian market.
The game's core mechanic revolves around manipulating light with a flashlight, challenging players to use their imagination to switch objects between 2D and 3D forms. Players will navigate a liminal space where geometry and physics intertwine.
Steam Next Fest Details
To celebrate its participation in Steam Next Fest, a major content update for the demo will be released. This allows players to experience the game's core "geometry and physics-based puzzles" ahead of launch.
Additionally, a new 60-second trailer for "THANKS, LIGHT." has been unveiled. This footage reveals previously unseen gameplay elements and expanding lore, offering a deeper dive into the game's appeal.
"THANKS, LIGHT." Demo Update Features
The demo for "THANKS, LIGHT." has undergone comprehensive optimization and content expansion. Key updates include:
- Content Update: A new playable stage has been unlocked. In addition to Chapters 1 and 2, Chapter 3 is now available for the first time, offering more intricate geometry and physics puzzles.
- Quality of Life Optimization: Based on player feedback, known issues have been fixed to ensure smoother puzzle-solving experiences.
- Subtitle Toggle: A subtitle ON/OFF feature has been added, allowing players to customize their viewing preferences.
- Original BGM: Completely new in-game background music has been implemented to enhance atmospheric immersion.
All new content will be available starting with Steam Next Fest. Players are invited to download the updated demo on Steam to experience the enhanced puzzles and wishlist the game.
Steam Next Fest Event Information
Steam Next Fest is a massive online celebration of upcoming games. For players, it is an opportunity to explore and play hundreds of demos ahead of release. For developers, it is a crucial time to connect with the community and gather valuable feedback. "THANKS, LIGHT." joins the event with its newly updated content and trailer.
Event Schedule:
Dates: Tuesday, June 16, 2026 – Tuesday, June 23, 2026
JST: Starts June 16 at 2:00 AM (PT: June 15 at 10:00 AM)
Truth Lies Behind Every Shape...
"THANKS, LIGHT." is the debut title from South Korean indie studio Lightersgames. It is a first-person puzzle platformer that follows in the footsteps of classics like "Portal," "Superliminal," "Viewfinder," and "The Talos Principle." The rules are remarkably simple: illuminating a shadow turns it into a 3D object, and absorbing the light reverts it to a 2D shadow.
A defining feature of the game is its lack of complex tutorials. Players must rely on observation, deduction, and trial-and-error to discover and understand the game's rules naturally, leading to deeper immersion in the puzzle-solving and the game world.
The title has already earned two awards at INDIECRAFT, South Korea's premier indie game festival, and was selected for the "Selected Indie 80" at Tokyo Game Show 2025. The free demo is available now on Steam. Step into this world striving for "perfection" and uncover the truth hidden between light and shadow, dimension, and perception.
About Game Source Entertainment
Game Source Entertainment is a Hong Kong-based publisher and distributor serving the Asian market.
FAQ
When is THANKS, LIGHT. being released?
It is scheduled for official release on PlayStation 5 and Steam in September 2026.
What are the core mechanics of THANKS, LIGHT.?
The game uses a flashlight mechanic where illuminating a shadow turns it into a 3D object, and absorbing the light reverts it to 2D.
Where can I play the demo?
A free demo is available on Steam, which was recently updated with Chapter 3 for Steam Next Fest.