diff --git a/setup/install-modules.sh b/setup/install-modules.sh
index e951132..c807201 100755
--- a/setup/install-modules.sh
+++ b/setup/install-modules.sh
@@ -116,6 +116,9 @@ count_steps() {
     [[ "$sel" == *"spotify"*         ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$sel" == *"prism"*           ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$sel" == *"vintagestory"*    ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$sel" == *"openarena"*       ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$sel" == *"tetris"*          ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$sel" == *"doom"*            ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$sel" == *"localsend"*       ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$sel" == *"croc"*            ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$sel" == *"onlyoffice"*      ]] && TOTAL=$(( TOTAL + 1 ))
@@ -201,6 +204,9 @@ SELECTED=$(dialog --backtitle "$BACKTITLE" \
     "spotify"         "Spotify           launcher + Spicetify theming"          off \
     "prism"           "PrismLauncher     Minecraft launcher (Flatpak)"          off \
     "vintagestory"    "Vintage Story     survival game (AUR)"                   off \
+    "openarena"       "OpenArena         open-source Quake III Arena"           off \
+    "tetris"          "Tetris CLI        bastet · vitetris"                     off \
+    "doom"            "Doom              Chocolate Doom + Freedoom data"        off \
     "localsend"       "LocalSend         LAN file transfer (AUR)"               off \
     "croc"            "croc              cross-platform file transfer"          off \
     "onlyoffice"      "OnlyOffice        office suite (AUR)"                   off \
@@ -266,6 +272,9 @@ SUMMARY=""
 [[ "$SELECTED" == *"spotify"*        ]] && SUMMARY+="  ✦ Spotify\n"
 [[ "$SELECTED" == *"prism"*          ]] && SUMMARY+="  ✦ PrismLauncher\n"
 [[ "$SELECTED" == *"vintagestory"*   ]] && SUMMARY+="  ✦ Vintage Story\n"
+[[ "$SELECTED" == *"openarena"*      ]] && SUMMARY+="  ✦ OpenArena\n"
+[[ "$SELECTED" == *"tetris"*         ]] && SUMMARY+="  ✦ Tetris CLI (bastet · vitetris)\n"
+[[ "$SELECTED" == *"doom"*           ]] && SUMMARY+="  ✦ Doom\n"
 [[ "$SELECTED" == *"localsend"*      ]] && SUMMARY+="  ✦ LocalSend\n"
 [[ "$SELECTED" == *"croc"*           ]] && SUMMARY+="  ✦ croc\n"
 [[ "$SELECTED" == *"onlyoffice"*     ]] && SUMMARY+="  ✦ OnlyOffice\n"
@@ -333,6 +342,9 @@ DE_DIR="$MODULES/Desktop-Environments"
 [[ "$SELECTED" == *"spotify"*        ]] && run_module "Spotify"           "$APPS/spotify.sh"
 [[ "$SELECTED" == *"prism"*          ]] && run_module "PrismLauncher"     "$APPS/prismlauncher.sh"
 [[ "$SELECTED" == *"vintagestory"*   ]] && run_module "Vintage Story"     "$APPS/vintagestory.sh"
+[[ "$SELECTED" == *"openarena"*      ]] && run_module "OpenArena"         "$APPS/openarena.sh"
+[[ "$SELECTED" == *"tetris"*         ]] && run_module "Tetris CLI"        "$APPS/tetris.sh"
+[[ "$SELECTED" == *"doom"*           ]] && run_module "Doom"              "$APPS/doom.sh"
 [[ "$SELECTED" == *"localsend"*      ]] && run_module "LocalSend"         "$APPS/localsend.sh"
 [[ "$SELECTED" == *"croc"*           ]] && run_module "croc"              "$APPS/croc.sh"
 [[ "$SELECTED" == *"onlyoffice"*     ]] && run_module "OnlyOffice"        "$APPS/onlyoffice.sh"
diff --git a/setup/modules/optional-Modules/apps/doom.sh b/setup/modules/optional-Modules/apps/doom.sh
new file mode 100644
index 0000000..6d1bc01
--- /dev/null
+++ b/setup/modules/optional-Modules/apps/doom.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+set -euo pipefail
+
+# chocolate-doom: faithful vanilla Doom port; freedoom: free game data (playable without IWADs)
+sudo pacman -S --noconfirm --needed chocolate-doom freedoom
diff --git a/setup/modules/optional-Modules/apps/openarena.sh b/setup/modules/optional-Modules/apps/openarena.sh
new file mode 100644
index 0000000..7a32af2
--- /dev/null
+++ b/setup/modules/optional-Modules/apps/openarena.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+set -euo pipefail
+sudo pacman -S --noconfirm --needed openarena
diff --git a/setup/modules/optional-Modules/apps/tetris.sh b/setup/modules/optional-Modules/apps/tetris.sh
new file mode 100644
index 0000000..040de3f
--- /dev/null
+++ b/setup/modules/optional-Modules/apps/tetris.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+set -euo pipefail
+
+sudo pacman -S --noconfirm --needed bastet
+
+yay -S --answerdiff None --answerclean All --noconfirm vitetris
diff --git a/setup/simple-install.sh b/setup/simple-install.sh
index 57d337d..78f0796 100755
--- a/setup/simple-install.sh
+++ b/setup/simple-install.sh
@@ -325,6 +325,9 @@ count_steps() {
     [[ "$a" == *"spotify"*        ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"prism"*          ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"vintagestory"*   ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$a" == *"openarena"*      ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$a" == *"tetris"*         ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$a" == *"doom"*           ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"localsend"*      ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"croc"*           ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"onlyoffice"*     ]] && TOTAL=$(( TOTAL + 1 ))
@@ -509,6 +512,9 @@ else
         "spotify"        "Spotify           launcher + Spicetify theming"              off \
         "prism"          "PrismLauncher     Minecraft launcher (Flatpak)"              off \
         "vintagestory"   "Vintage Story     survival game (AUR)"                       off \
+        "openarena"      "OpenArena         open-source Quake III Arena"                off \
+        "tetris"         "Tetris CLI        bastet · vitetris"                          off \
+        "doom"           "Doom              Chocolate Doom + Freedoom data"             off \
         \
         ""               "File Transfer & Office"                                       header \
         "localsend"      "LocalSend         LAN file transfer (AUR)"                   off \
@@ -589,7 +595,7 @@ if ! $ANSWERFILE_MODE; then
         for _app in ollama llama-cpp open-webui claude networking-cli disk-recovery \
                     himalaya gnuplot blender-povray toot db-clients mysql productivity \
                     yt-dlp sox imagemagick ffmpeg localtunnel butter tlp steam vesktop \
-                    spotify prism vintagestory localsend croc onlyoffice \
+                    spotify prism vintagestory openarena tetris doom localsend croc onlyoffice \
                     gimp inkscape krita xournal ardour audacity lmms mixxx cecilia \
                     kdenlive openshot shotcut \
                     anti-malware timeshift wireshark k8s \
@@ -653,6 +659,9 @@ fi
 [[ "$SELECTED_APPS" == *"spotify"*        ]] && run_module "Spotify"           "$APPS/spotify.sh"
 [[ "$SELECTED_APPS" == *"prism"*          ]] && run_module "PrismLauncher"     "$APPS/prismlauncher.sh"
 [[ "$SELECTED_APPS" == *"vintagestory"*   ]] && run_module "Vintage Story"     "$APPS/vintagestory.sh"
+[[ "$SELECTED_APPS" == *"openarena"*      ]] && run_module "OpenArena"         "$APPS/openarena.sh"
+[[ "$SELECTED_APPS" == *"tetris"*         ]] && run_module "Tetris CLI"        "$APPS/tetris.sh"
+[[ "$SELECTED_APPS" == *"doom"*           ]] && run_module "Doom"              "$APPS/doom.sh"
 [[ "$SELECTED_APPS" == *"localsend"*      ]] && run_module "LocalSend"         "$APPS/localsend.sh"
 [[ "$SELECTED_APPS" == *"croc"*           ]] && run_module "croc"              "$APPS/croc.sh"
 [[ "$SELECTED_APPS" == *"onlyoffice"*     ]] && run_module "OnlyOffice"        "$APPS/onlyoffice.sh"
diff --git a/setup/tui-install.sh b/setup/tui-install.sh
index 1b927da..7b27788 100755
--- a/setup/tui-install.sh
+++ b/setup/tui-install.sh
@@ -137,6 +137,9 @@ count_steps() {
     [[ "$a" == *"spotify"*        ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"prism"*          ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"vintagestory"*   ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$a" == *"openarena"*      ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$a" == *"tetris"*         ]] && TOTAL=$(( TOTAL + 1 ))
+    [[ "$a" == *"doom"*           ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"localsend"*      ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"croc"*           ]] && TOTAL=$(( TOTAL + 1 ))
     [[ "$a" == *"onlyoffice"*     ]] && TOTAL=$(( TOTAL + 1 ))
@@ -348,6 +351,9 @@ else
         "spotify"         "Spotify           launcher + Spicetify theming"          off \
         "prism"           "PrismLauncher     Minecraft launcher (Flatpak)"          off \
         "vintagestory"    "Vintage Story     survival game (AUR)"                   off \
+        "openarena"       "OpenArena         open-source Quake III Arena"           off \
+        "tetris"          "Tetris CLI        bastet · vitetris"                     off \
+        "doom"            "Doom              Chocolate Doom + Freedoom data"        off \
         "localsend"       "LocalSend         LAN file transfer (AUR)"               off \
         "croc"            "croc              cross-platform file transfer"          off \
         "onlyoffice"      "OnlyOffice        office suite (AUR)"                   off \
@@ -434,6 +440,9 @@ if ! $ANSWERFILE_MODE; then
         [[ "$SELECTED_APPS" == *"spotify"*        ]] && SUMMARY+="  ✦ Spotify + Spicetify\n"
         [[ "$SELECTED_APPS" == *"prism"*          ]] && SUMMARY+="  ✦ PrismLauncher\n"
         [[ "$SELECTED_APPS" == *"vintagestory"*   ]] && SUMMARY+="  ✦ Vintage Story\n"
+        [[ "$SELECTED_APPS" == *"openarena"*      ]] && SUMMARY+="  ✦ OpenArena\n"
+        [[ "$SELECTED_APPS" == *"tetris"*         ]] && SUMMARY+="  ✦ Tetris CLI (bastet · vitetris)\n"
+        [[ "$SELECTED_APPS" == *"doom"*           ]] && SUMMARY+="  ✦ Doom\n"
         [[ "$SELECTED_APPS" == *"localsend"*      ]] && SUMMARY+="  ✦ LocalSend\n"
         [[ "$SELECTED_APPS" == *"croc"*           ]] && SUMMARY+="  ✦ croc\n"
         [[ "$SELECTED_APPS" == *"onlyoffice"*     ]] && SUMMARY+="  ✦ OnlyOffice\n"
@@ -533,6 +542,9 @@ fi
 [[ "$SELECTED_APPS" == *"spotify"*        ]] && run_module "Spotify"           "$APPS/spotify.sh"
 [[ "$SELECTED_APPS" == *"prism"*          ]] && run_module "PrismLauncher"     "$APPS/prismlauncher.sh"
 [[ "$SELECTED_APPS" == *"vintagestory"*   ]] && run_module "Vintage Story"     "$APPS/vintagestory.sh"
+[[ "$SELECTED_APPS" == *"openarena"*      ]] && run_module "OpenArena"         "$APPS/openarena.sh"
+[[ "$SELECTED_APPS" == *"tetris"*         ]] && run_module "Tetris CLI"        "$APPS/tetris.sh"
+[[ "$SELECTED_APPS" == *"doom"*           ]] && run_module "Doom"              "$APPS/doom.sh"
 [[ "$SELECTED_APPS" == *"localsend"*      ]] && run_module "LocalSend"         "$APPS/localsend.sh"
 [[ "$SELECTED_APPS" == *"croc"*           ]] && run_module "croc"              "$APPS/croc.sh"
 [[ "$SELECTED_APPS" == *"onlyoffice"*     ]] && run_module "OnlyOffice"        "$APPS/onlyoffice.sh"