diff --git a/CHANGELOG.md b/CHANGELOG.md
index 271aa2d..31d7373 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -72,6 +72,7 @@
 - New #84: Add `refundStarPayment` method.
 - New #85: Add `setPassportDataErrors` method and `PassportElementError*` types.
 - New #86: Add `sendGame` method.
+- New #87: Add `setGameScore` method.
 - Chg #24: Move update methods to `Vjik\TelegramBot\Api\Method\Update` namespace, and update types to
   `Vjik\TelegramBot\Api\Type\Update` namespace.
 - Chg #30: Remove `TelegramRequestWithFilesInterface`.
diff --git a/src/Method/Game/SetGameScore.php b/src/Method/Game/SetGameScore.php
new file mode 100644
index 0000000..ebae5dd
--- /dev/null
+++ b/src/Method/Game/SetGameScore.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Vjik\TelegramBot\Api\Method\Game;
+
+use Vjik\TelegramBot\Api\Request\HttpMethod;
+use Vjik\TelegramBot\Api\Request\TelegramRequestWithResultPreparingInterface;
+use Vjik\TelegramBot\Api\Type\Message;
+
+/**
+ * @see https://core.telegram.org/bots/api#setgamescore
+ */
+final readonly class SetGameScore implements TelegramRequestWithResultPreparingInterface
+{
+    public function __construct(
+        private int $userId,
+        private int $score,
+        private ?bool $force = null,
+        private ?bool $disableEditMessage = null,
+        private ?int $chatId = null,
+        private ?int $messageId = null,
+        private ?string $inlineMessageId = null,
+    ) {
+    }
+
+    public function getHttpMethod(): HttpMethod
+    {
+        return HttpMethod::POST;
+    }
+
+    public function getApiMethod(): string
+    {
+        return 'setGameScore';
+    }
+
+    public function getData(): array
+    {
+        return array_filter(
+            [
+                'user_id' => $this->userId,
+                'score' => $this->score,
+                'force' => $this->force,
+                'disable_edit_message' => $this->disableEditMessage,
+                'chat_id' => $this->chatId,
+                'message_id' => $this->messageId,
+                'inline_message_id' => $this->inlineMessageId,
+            ],
+            static fn(mixed $value): bool => $value !== null,
+        );
+    }
+
+    public function prepareResult(mixed $result): Message|true
+    {
+        return $result === true
+            ? $result
+            : Message::fromTelegramResult($result);
+    }
+}
diff --git a/src/TelegramBotApi.php b/src/TelegramBotApi.php
index f917edf..ea14d45 100644
--- a/src/TelegramBotApi.php
+++ b/src/TelegramBotApi.php
@@ -31,6 +31,7 @@
 use Vjik\TelegramBot\Api\Method\ForwardMessage;
 use Vjik\TelegramBot\Api\Method\ForwardMessages;
 use Vjik\TelegramBot\Api\Method\Game\SendGame;
+use Vjik\TelegramBot\Api\Method\Game\SetGameScore;
 use Vjik\TelegramBot\Api\Method\GetBusinessConnection;
 use Vjik\TelegramBot\Api\Method\GetChat;
 use Vjik\TelegramBot\Api\Method\GetChatAdministrators;
@@ -2202,6 +2203,33 @@ public function setCustomEmojiStickerSetThumbnail(string $name, ?string $customE
         return $this->send(new SetCustomEmojiStickerSetThumbnail($name, $customEmojiId));
     }
 
+    /**
+     * @see https://core.telegram.org/bots/api#setgamescore
+     *
+     * @psalm-suppress MixedInferredReturnType,MixedReturnStatement
+     */
+    public function setGameScore(
+        int $userId,
+        int $score,
+        ?bool $force = null,
+        ?bool $disableEditMessage = null,
+        ?int $chatId = null,
+        ?int $messageId = null,
+        ?string $inlineMessageId = null,
+    ): FailResult|Message|true {
+        return $this->send(
+            new SetGameScore(
+                $userId,
+                $score,
+                $force,
+                $disableEditMessage,
+                $chatId,
+                $messageId,
+                $inlineMessageId
+            )
+        );
+    }
+
     /**
      * @see https://core.telegram.org/bots/api#setmessagereaction
      *
diff --git a/tests/Method/Game/SetGameScoreTest.php b/tests/Method/Game/SetGameScoreTest.php
new file mode 100644
index 0000000..e693265
--- /dev/null
+++ b/tests/Method/Game/SetGameScoreTest.php
@@ -0,0 +1,73 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Vjik\TelegramBot\Api\Tests\Method\Game;
+
+use PHPUnit\Framework\TestCase;
+use Vjik\TelegramBot\Api\Method\Game\SetGameScore;
+use Vjik\TelegramBot\Api\Request\HttpMethod;
+use Vjik\TelegramBot\Api\Type\Message;
+
+final class SetGameScoreTest extends TestCase
+{
+    public function testBase(): void
+    {
+        $method = new SetGameScore(1, 2);
+
+        $this->assertSame(HttpMethod::POST, $method->getHttpMethod());
+        $this->assertSame('setGameScore', $method->getApiMethod());
+        $this->assertSame(
+            [
+                'user_id' => 1,
+                'score' => 2,
+            ],
+            $method->getData(),
+        );
+    }
+
+    public function testFull(): void
+    {
+        $method = new SetGameScore(
+            1,
+            2,
+            true,
+            false,
+            10,
+            20,
+            'id1',
+        );
+
+        $this->assertSame(
+            [
+                'user_id' => 1,
+                'score' => 2,
+                'force' => true,
+                'disable_edit_message' => false,
+                'chat_id' => 10,
+                'message_id' => 20,
+                'inline_message_id' => 'id1',
+            ],
+            $method->getData()
+        );
+    }
+
+    public function testPrepareResult(): void
+    {
+        $method = new SetGameScore(1, 2);
+
+        $preparedResult = $method->prepareResult(true);
+        $this->assertTrue($preparedResult);
+
+        $preparedResult = $method->prepareResult([
+            'message_id' => 7,
+            'date' => 1620000000,
+            'chat' => [
+                'id' => 1,
+                'type' => 'private',
+            ],
+        ]);
+        $this->assertInstanceOf(Message::class, $preparedResult);
+        $this->assertSame(7, $preparedResult->messageId);
+    }
+}
diff --git a/tests/Method/UpdatingMessage/EditMessageMediaTest.php b/tests/Method/UpdatingMessage/EditMessageMediaTest.php
index 7d7a1b5..51effad 100644
--- a/tests/Method/UpdatingMessage/EditMessageMediaTest.php
+++ b/tests/Method/UpdatingMessage/EditMessageMediaTest.php
@@ -33,7 +33,7 @@ public function testBase(): void
         );
     }
 
-    public function testFull1(): void
+    public function testFull(): void
     {
         $file = new InputFile((new StreamFactory())->createStream());
         $media = new InputMediaPhoto($file);
diff --git a/tests/TelegramBotApiTest.php b/tests/TelegramBotApiTest.php
index 780d795..f3107e7 100644
--- a/tests/TelegramBotApiTest.php
+++ b/tests/TelegramBotApiTest.php
@@ -1678,6 +1678,18 @@ public function testSetCustomEmojiStickerSetThumbnail(): void
         $this->assertTrue($result);
     }
 
+    public function testSetGameScore(): void
+    {
+        $api = $this->createApi([
+            'ok' => true,
+            'result' => true,
+        ]);
+
+        $result = $api->setGameScore(1, 2);
+
+        $this->assertTrue($result);
+    }
+
     public function testSetMessageReaction(): void
     {
         $api = $this->createApi([