Notice of Temporary Office Closure for Employee Training

We would like to take this opportunity to thank you for your continued support.
Our office will be closed from Monday, November 16 to Tuesday, November 17, 2026 (JST) due to employee training.
Any inquiries received during this period will be addressed in the order they are received beginning on Wednesday, November 18, 2026 (JST).
We apologize for any inconvenience this may cause and appreciate your understanding.

2026.10.05

"RPG Developer Bakin" 
Steam Autumn Sale 2026: RPG Developer Bakin 30% OFF! 
Starting today, "RPG Developer Bakin" is 30% off, and various DLCs are 10-70% off until Thursday, October 8, 2026, at 10:00 AM PDT in the Steam Autumn Sale 2026 ! Don't miss this opportunity!

Click here for details *To Steam page.

2026.10.02

"SMILE GAME BUILDER" on Steam AutumnSale 2026
Starting today, "SMILE GAME BUILDER" and various DLCs are 80% off until Thursday, October 8, 2026, at 10:00 AM PDT in the Steam Autumn Sale 2026 !
Don't miss this opportunity!
Click here for details *To Steam page.

2026.10.02

2026.09.12

"SMILE GAME BUILDER" Celebrating 10 Years!
To celebrate this milestone and thank you for your continued support, we’re excited to release “SMILE GAME BUILDER CHARACTER ART WORKS” for free!
Originally released on September 8, 2016, “SMILE GAME BUILDER” celebrates its 10th anniversary today. 
To mark this special occasion, we’re making “SMILE GAME BUILDER CHARACTER ART WORKS” available as a free download.
This collection brings together a treasure trove of artwork created throughout the development of “SMILE GAME BUILDER”, including character concept art, early sketches, color roughs, line art, and more. Download it and take a look!
Click here for details *To Steam page.

2026.09.08

 “RPG Developer Bakin”
Celebrating the First Anniversary of the Full Release!
Major Update Expands Auto Battle and Video Production Capabilities!
Anniversary Sale and Artwork Submission Campaign Also Underway
Today, SmileBoom Co.Ltd. is pleased to announce that its PC game creation tool, "RPG Developer Bakin" (read as "BAH-keen"; hereafter referred to as Bakin), has reached the first anniversary of its full release.
At the same time, we have released the major Ver. 2.6 update, which introduces a new Auto Battle feature, enhanced video presentation capabilities, and more.
To commemorate the first anniversary of the full release, we are also holding an anniversary sale featuring Bakin and various DLCs. In addition, we are running the “Second Official Website Background Artwork Call for Submissions,” an initiative that will feature selected user-created artwork as the background of the official website’s top page.

Click here for details. 

2026.08.28

"RPG Developer Bakin" 
Full Release 1st Anniversary Sale: RPG Developer Bakin 30% OFF! 
Starting today, "RPG Developer Bakin" is 30% off, and various DLCs are 20-70% off until Thursday, September 10, 2026, at 18:00 PM PDT. Don't miss this opportunity!

Click here for details *To Steam page.

2026.08.28

"SMILE GAME BUILDER" 10th Anniversary Sale!
Our easy-to-use RPG game creation software for Windows, "SMILE GAME BUILDER," celebrates its 10th anniversary on September 8, 2026!
To celebrate, starting today, SMILE GAME BUILDER and its DLCs are up to 80% OFF! until Thursday, Sep. 10, 2026, at 6:00 PM PDT.
Don't miss this opportunity!
Click here for details *To Steam page.

2026.08.28

Notice of Summer Holidays
We would like to take this opportunity to thank you for your continued support.
Our office will be closed for the summer holidays during the following period.
We apologize for any inconvenience this may cause and appreciate your understanding.

[Summer Holiday Period]
Saturday, August 8, 2026 - Sunday, August 16, 2026 (JST)

We will be open for business as usual from Monday, August 17, 2026.

Inquiries received during the summer holiday period will be handled in order from Monday, August 17, 2026.

2026.08.05