Those games rely on user to provide the files to write scores in.
Those score-files are initially empty.  Anyway, the Store is read-only.
So we do not install those empty files.

diff -Naur bsd-games-2.17/install-score.in bsd-games-patch/install-score.in
--- bsd-games-2.17/install-score.in	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/install-score.in	2020-04-22 21:41:47.810544804 +0700
@@ -1,45 +0,0 @@
-# install-score.in - install a score file
-#
-# Copyright (c) 1997, 1998, 1999 Joseph Samuel Myers.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in the
-#    documentation and/or other materials provided with the distribution.
-# 3. The name of the author may not be used to endorse or promote products
-#    derived from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-# SUCH DAMAGE.
-
-set -e
-
-if [ "$1" = "-p" ]; then
-    scorefile="@install_prefix@$2"
-    perms=@vardata_perms_priv@
-else
-    scorefile="@install_prefix@$1"
-    perms=@vardata_perms@
-fi
-
-mkdir -p "$(dirname "$scorefile")"
-
-test -e "$scorefile" || touch "$scorefile"
-if [ @do_chown@ = y ]; then
-    chown @vardata_owner@:@vardata_group@ "$scorefile"
-fi
-chmod "$perms" "$scorefile"
diff -Naur bsd-games-2.17/phantasia/Makefrag bsd-games-patch/phantasia/Makefrag
--- bsd-games-2.17/phantasia/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/phantasia/Makefrag	2020-04-22 21:26:00.162409464 +0700
@@ -27,9 +27,8 @@
 # SUCH DAMAGE.

 phantasia_DIRS := $(GAMESDIR) $(MAN6DIR) $(PHANTASIA_DIR)
-phantasia_VFILES1 := gold lastdead mess monsters motd void
-phantasia_VFILES2 := scoreboard characs
-phantasia_CLEANFILES := $(phantasia_VFILES1) $(phantasia_VFILES2) scorefiles.stamp
+phantasia_VFILES1 := monsters
+phantasia_CLEANFILES := $(phantasia_VFILES1) scorefiles.stamp

 phantasia_all:	phantasia/phantasia phantasia/phantasia.6 phantasia/scorefiles.stamp

@@ -43,9 +42,4 @@
	(set -e; for f in $(phantasia_VFILES1); do \
	    cp phantasia/$$f $(INSTALL_PREFIX)$(PHANTASIA_DIR)/$$f; \
	    $(INSTALL_SCORE_FILE) $(PHANTASIA_DIR)/$$f; done)
-	(set -e; for f in $(phantasia_VFILES2); do \
-	    if [ ! -e $(PHANTASIA_DIR)/$$f ]; then \
-		cp phantasia/$$f $(INSTALL_PREFIX)$(PHANTASIA_DIR)/$$f; fi; done; \
-	    $(INSTALL_SCORE_FILE) $(PHANTASIA_DIR)/scoreboard; \
-	    $(INSTALL_SCORE_FILE) -p $(PHANTASIA_DIR)/characs)
	$(INSTALL_MANUAL) phantasia/phantasia.6
diff -Naur bsd-games-2.17/sail/Makefrag bsd-games-patch/sail/Makefrag
--- bsd-games-2.17/sail/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/sail/Makefrag	2020-04-22 21:26:48.701801676 +0700
@@ -34,5 +34,4 @@
	$(INSTALL_SCORE_GAME) sail/sail $(INSTALL_PREFIX)$(GAMESDIR)/sail
	$(HIDE_GAME) sail
	$(INSTALL_SCORE_FILE) $(SAIL_SCOREFILE)
-	$(INSTALL_SAIL_DIR) $(INSTALL_PREFIX)$(SAIL_DIR)
	$(INSTALL_MANUAL) sail/sail.6
tions]: Mention
'guix git authenticate'.
(Invoking guix git authenticate): New node.
* po/guix/POTFILES.in: Add 'guix/scripts/git.scm' and
'guix/scripts/git/authenticate.scm'.
</span></span></td><td>Ludovic Courtès</td></tr>