diff --git a/document/legals.txt b/document/legals.txt
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+TECHMINO © 2019~2021 26F Studio. Some rights reserved.
+TECHMINO and "26F Studio" are trademarks of 26F Studio.
+The TECHMINO game and source code are under a GNU Lesser General Public License Version 3.
+
+"Tetris" is the registered trademark of The Tetris Holding, LLC, licensed to The Tetris Company, Inc.
+
+TECHMINO is not a fan game. TECHMINO and 26F Studio are not affiliated in any way with Tetris Holding, LLC or The Tetris Company, Inc.
+
+Powered by LÖVE, © 2006-2021 LÖVE Development Team.
+
+Lua is free software distributed under the terms of the MIT license. Copyright © 1994~2021 by Lua.org, PUC-Rio.
+
+The Apple logo, "Apple Inc.," iOS, iPadOS, macOS, iPhone, and Mac are registered trademarks of Apple Inc. in the United States of America and other countries or regions.
+
+"Windows", the Windows logo, and "Microsoft" are registered trademarks of Microsoft Corporation in the United States of America and other countries or regions.
+
+Alibaba Sans is copyrighted by Alibaba Group Holding Limited. Alibaba is a trademark of Alibaba Group Holding Limited in the People’s Republic of China and other countries or regions.
+
+JetBrains Mono is copyrighted by the JetBrains Mono Project authors. JetBrains Mono is a trademark of JetBrains s.r.o. JetBrains Mono is licensed under the SIL Open Font License, Version 1.1.
+
+GoldWave is a registered trademark of GoldWave, Inc.
+
+Linux is a registered trademark of Linus Torvalds. 
+
+All other trademarks are the property of their respective owners.
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