diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b24b904..ba7c5da 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-        
+          
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
@@ -47,7 +47,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-        run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar
+        run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar -Dsonar.projectKey=grimsi_gameyfin
 
       - name: Upload build artifact
         uses: actions/upload-artifact@v3
diff --git a/backend/pom.xml b/backend/pom.xml
index ee8d887..ce82109 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -254,6 +254,21 @@
                     </execution>
                 </executions>
             </plugin>
+
+            <!-- JaCoCo coverage report -->
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>report</id>
+                        <goals>
+                            <goal>report-aggregate</goal>
+                        </goals>
+                        <phase>verify</phase>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 
diff --git a/backend/src/main/java/de/grimsi/gameyfin/rest/GamesController.java b/backend/src/main/java/de/grimsi/gameyfin/rest/GamesController.java
index 156988a..a8358f2 100644
--- a/backend/src/main/java/de/grimsi/gameyfin/rest/GamesController.java
+++ b/backend/src/main/java/de/grimsi/gameyfin/rest/GamesController.java
@@ -5,11 +5,16 @@ import de.grimsi.gameyfin.entities.DetectedGame;
 import de.grimsi.gameyfin.service.DownloadService;
 import de.grimsi.gameyfin.service.GameService;
 import lombok.RequiredArgsConstructor;
+import org.springframework.core.io.ByteArrayResource;
+import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;
 
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.List;
 import java.util.Map;
 
@@ -44,17 +49,33 @@ public class GamesController {
         return gameService.getAllMappings();
     }
 
-    @GetMapping(value="/game/{slug}/download")
+    @GetMapping(value = "/game/{slug}/download")
     public ResponseEntity<StreamingResponseBody> downloadGameFiles(@PathVariable String slug) {
 
         DetectedGame game = gameService.getDetectedGame(slug);
 
         String downloadFileName = downloadService.getDownloadFileName(game);
+        long downloadFileSize = downloadService.getDownloadFileSize(game);
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"%s\"".formatted(downloadFileName));
+        headers.add(HttpHeaders.CACHE_CONTROL, "no-cache, no-store, must-revalidate");
+        headers.add(HttpHeaders.PRAGMA, "no-cache");
+        headers.add(HttpHeaders.EXPIRES, "0");
+        headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
+        if (downloadFileSize > 0) {
+            headers.setContentLength(downloadFileSize);
+        }
 
         return ResponseEntity
                 .ok()
-                .header("Content-Disposition", "attachment; filename=\"%s\"".formatted(downloadFileName))
+                .headers(headers)
                 .body(out -> downloadService.sendGamefilesToClient(game, out));
     }
 
+    @GetMapping(value = "/game/{slug}/refresh", produces = MediaType.APPLICATION_JSON_VALUE)
+    public DetectedGame refreshGame(@PathVariable String slug) {
+        return gameService.refreshGame(slug);
+    }
+
 }
diff --git a/backend/src/main/java/de/grimsi/gameyfin/service/DownloadService.java b/backend/src/main/java/de/grimsi/gameyfin/service/DownloadService.java
index 563e522..c29fe20 100644
--- a/backend/src/main/java/de/grimsi/gameyfin/service/DownloadService.java
+++ b/backend/src/main/java/de/grimsi/gameyfin/service/DownloadService.java
@@ -6,6 +6,7 @@ import lombok.RequiredArgsConstructor;
 import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.catalina.connector.ClientAbortException;
+import org.apache.commons.io.FileUtils;
 import org.springframework.core.io.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StopWatch;
@@ -34,6 +35,23 @@ public class DownloadService {
         return getFilenameWithExtension(path) + ".zip";
     }
 
+    public long getDownloadFileSize(DetectedGame game) {
+        Path path = Path.of(game.getPath());
+
+        try {
+            if (!path.toFile().isDirectory()) {
+                long fileSize = filesystemService.getSizeOnDisk(path);
+                log.info("Calculated file size for {} ({} MB).", path, Math.divideExact(fileSize, 1000000L));
+                return fileSize;
+            } else {
+                // return zero since we cannot set content length for ZipOutputStreams that are used to archive directories
+                return 0;
+            }
+        } catch (IOException e) {
+            throw new DownloadAbortedException();
+        }
+    }
+
     public Resource sendImageToClient(String imageId) {
         String filename = "%s.png".formatted(imageId);
         return filesystemService.getFileFromCache(filename);
@@ -78,6 +96,7 @@ public class DownloadService {
     }
 
     private void sendGamefilesAsZipToClient(Path path, OutputStream outputStream) {
+        log.info("Archiving game path {} for download...", path);
         ZipOutputStream zos = new ZipOutputStream(outputStream) {{
             def.setLevel(Deflater.NO_COMPRESSION);
         }};
@@ -87,6 +106,7 @@ public class DownloadService {
                 @SneakyThrows
                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
                     zos.putNextEntry(new ZipEntry(path.relativize(file).toString()));
+                    log.debug("Adding file {} to archive...", file);
                     Files.copy(file, zos);
                     zos.closeEntry();
 
diff --git a/backend/src/main/java/de/grimsi/gameyfin/service/GameService.java b/backend/src/main/java/de/grimsi/gameyfin/service/GameService.java
index 3fd2a82..0c36729 100644
--- a/backend/src/main/java/de/grimsi/gameyfin/service/GameService.java
+++ b/backend/src/main/java/de/grimsi/gameyfin/service/GameService.java
@@ -9,6 +9,7 @@ import de.grimsi.gameyfin.mapper.GameMapper;
 import de.grimsi.gameyfin.repositories.DetectedGameRepository;
 import de.grimsi.gameyfin.repositories.UnmappableFileRepository;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Service;
 import org.springframework.web.server.ResponseStatusException;
@@ -20,6 +21,7 @@ import java.util.Optional;
 import java.util.stream.Collectors;
 
 @RequiredArgsConstructor
+@Slf4j
 @Service
 public class GameService {
 
@@ -87,6 +89,17 @@ public class GameService {
         throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Path '%s' not in database".formatted(path));
     }
 
+    public DetectedGame refreshGame(String slug) {
+        Optional<DetectedGame> optionalDetectedGame = detectedGameRepository.findById(slug);
+
+        if (optionalDetectedGame.isPresent()) {
+            log.info("Refreshing game with slug '{}'", slug);
+            return mapDetectedGame(optionalDetectedGame.get(), slug);
+        }
+
+        throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Game with slug '%s' not found in database".formatted(slug));
+    }
+
     private DetectedGame mapUnmappableFile(UnmappableFile unmappableFile, String slug) {
         Igdb.Game igdbGame = igdbWrapper.getGameBySlug(slug)
                 .orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND, "Game with slug '%s' does not exist on IGDB.".formatted(slug)));
@@ -106,8 +119,6 @@ public class GameService {
         DetectedGame game = gameMapper.toDetectedGame(igdbGame, Path.of(existingGame.getPath()));
         game = detectedGameRepository.save(game);
 
-        detectedGameRepository.deleteById(existingGame.getSlug());
-
         return game;
     }
 }
diff --git a/frontend/src/app/api/GamesApi.ts b/frontend/src/app/api/GamesApi.ts
index b198553..aa24c14 100644
--- a/frontend/src/app/api/GamesApi.ts
+++ b/frontend/src/app/api/GamesApi.ts
@@ -7,4 +7,5 @@ export interface GamesApi {
   getGame(slug: String): Observable<DetectedGameDto>;
   getGameOverviews(): Observable<GameOverviewDto[]>;
   getAllGameMappings(): Observable<Map<string, string>>;
+  refreshGame(slug: String): Observable<DetectedGameDto>;
 }
diff --git a/frontend/src/app/components/game-detail-view/game-detail-view.component.html b/frontend/src/app/components/game-detail-view/game-detail-view.component.html
index 8d2d39b..f5b284b 100644
--- a/frontend/src/app/components/game-detail-view/game-detail-view.component.html
+++ b/frontend/src/app/components/game-detail-view/game-detail-view.component.html
@@ -3,7 +3,7 @@
   <div fxLayout="column" fxFlex="0 1 75" fxLayoutGap="16px" fxFlex.lt-lg="95">
     <div fxLayout="row" fxLayout.lt-lg="column" fxLayoutGap="16px">
 
-      <mat-card fxFlex="60" fxLayout="row" fxLayout.lt-lg="column" fxLayoutGap="16px">
+      <mat-card fxFlex="100" fxLayout="row" fxLayout.lt-lg="column" fxLayoutGap="16px">
         <div fxLayoutAlign="start" fxLayoutAlign.lt-lg="center">
           <img src="v1/images/{{game.coverId}}" style="max-height: 352px" alt="Game cover">
         </div>
@@ -20,8 +20,8 @@
           <div *ngIf="companiesWithLogo.length > 0">
             <h2>Developed by</h2>
             <div fxLayout="row wrap" fxLayoutGap="8px grid">
-              <div *ngFor="let company of companiesWithLogo">
-                <img style="height: 52px;" src="v1/images/{{company.logoId}}" alt="{{company.name}}" [matTooltip]="company.name">
+              <div *ngFor="let company of companiesWithLogo" class="company-logos">
+                <img src="v1/images/{{company.logoId}}" alt="{{company.name}}" [matTooltip]="company.name">
               </div>
             </div>
           </div>
@@ -33,6 +33,9 @@
       <div fxLayout="column" fxFlex="40" fxLayoutGap="16px">
 
         <div fxLayout="row" fxLayoutAlign="start center" fxLayoutGap="16px">
+          <button mat-raised-button color="secondary" (click)="refreshGame()" title="Refresh metadata">
+            <mat-icon>refresh</mat-icon>
+          </button>
           <button mat-raised-button color="primary" (click)="downloadGame()">
             <mat-icon>download</mat-icon>
           </button>
diff --git a/frontend/src/app/components/game-detail-view/game-detail-view.component.scss b/frontend/src/app/components/game-detail-view/game-detail-view.component.scss
index e69de29..fda9bd6 100644
--- a/frontend/src/app/components/game-detail-view/game-detail-view.component.scss
+++ b/frontend/src/app/components/game-detail-view/game-detail-view.component.scss
@@ -0,0 +1,8 @@
+.mat-card {
+//   min-height: max-content;
+
+  .company-logos img {
+    max-height: 52px;
+    max-width: 260px;
+  }
+}
diff --git a/frontend/src/app/components/game-detail-view/game-detail-view.component.ts b/frontend/src/app/components/game-detail-view/game-detail-view.component.ts
index 444f1b0..88f6db7 100644
--- a/frontend/src/app/components/game-detail-view/game-detail-view.component.ts
+++ b/frontend/src/app/components/game-detail-view/game-detail-view.component.ts
@@ -48,6 +48,24 @@ export class GameDetailViewComponent {
     this.gamesService.downloadGame(this.game.slug);
   }
 
+  public refreshGame(): void {
+    this.gamesService.refreshGame(this.game.slug).subscribe({
+      next: game => {
+        this.game = game;
+        if(game.companies !== undefined) {
+          this.companiesWithLogo = game.companies.filter(c => c.logoId !== undefined && c.logoId.length > 0);
+        }
+      },
+      error: error => {
+        if (error.status === 404) {
+          this.router.navigate(['/library']);
+        } else {
+          console.error(error);
+        }
+      }
+   });
+  }
+
   public bytesAsHumanReadableString(bytes: number): string {
     const thresh = 1024;
 
diff --git a/frontend/src/app/services/games.service.ts b/frontend/src/app/services/games.service.ts
index 87bd6f4..ea7a5b8 100644
--- a/frontend/src/app/services/games.service.ts
+++ b/frontend/src/app/services/games.service.ts
@@ -92,6 +92,10 @@ export class GamesService implements GamesApi {
     window.open(`v1${this.apiPath}/game/${slug}/download`, '_top');
   }
 
+  refreshGame(slug: String): Observable<DetectedGameDto> {
+    return this.http.get<DetectedGameDto>(`${this.apiPath}/game/${slug}/refresh`);
+  }
+
   getGameOverviews(): Observable<GameOverviewDto[]> {
     return this.http.get<GameOverviewDto[]>(`${this.apiPath}/game-overviews`);
   }
diff --git a/pom.xml b/pom.xml
index c2c5cf9..cef79b4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>de.grimsi</groupId>
@@ -19,7 +20,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.7.4</version>
-        <relativePath /> <!-- lookup parent from repository -->
+        <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
     <scm>
@@ -27,7 +28,7 @@
         <url>scm:git:https://github.com/grimsi/gameyfin.git</url>
         <developerConnection>scm:git:https://github.com/grimsi/gameyfin.git</developerConnection>
     </scm>
-
+  
     <properties>
         <sonar.organization>grimsi-github</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
diff --git a/sonar-project.properties b/sonar-project.properties
index 3593a3c..efe7579 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -1,4 +1,2 @@
-sonar.projectKey=grimsi_gameyfin
-
 # Point SONAR to the compiled Java classes
 sonar.java.binaries=./backend/target