diff --git a/gnu/local.mk b/gnu/local.mk
index 76129c9d82..7396208a9b 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1382,6 +1382,7 @@ dist_patch_DATA =						\
    %D%/packages/patches/libffi-3.3-powerpc-fixes.patch		\
    %D%/packages/patches/libffi-float128-powerpc64le.patch	\
    %D%/packages/patches/libgeotiff-fix-tests-with-proj-9.1.1.patch	\
+  %D%/packages/patches/libgeramun-add-makefile.patch	\
    %D%/packages/patches/libobjc2-unbundle-robin-map.patch	\
    %D%/packages/patches/librime-fix-build-with-gcc10.patch	\
    %D%/packages/patches/libvirt-add-install-prefix.patch	\
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index cbededa8e4..021a206326 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -2494,6 +2494,47 @@ (define-public libccd
  a.k.a. XenoCollide) as described in Game Programming Gems 7.")
      (license license:expat)))
  
+(define-public libgeramun
+  (let ((commit "29668d33266a00fa730d8ee5a16893a86ee2d04d")
+             (revision "0"))
+  (package
+    (name "libgeramun")
+    (version (git-version "0.14" revision commit))
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://gitlab.com/hydren/libgeramun")
+                    (commit commit)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1nfsdyp3nnz33wxy54vnbbm50kr2y5h6q40kz6g1whz12lqmi79n"))
+              (patches
+               (search-patches "libgeramun-add-makefile.patch"))
+              (modules '((guix build utils)))
+              (snippet
+               #~(begin
+                   (for-each
+                    (lambda (file)
+                      (install-file file "include/libgeramun"))
+                    (find-files "." "\\.h(pp)?$"))))))
+    (build-system gnu-build-system)
+    (arguments
+     (list #:tests? #f ; no tests
+           #:phases
+           #~(modify-phases %standard-phases
+               (delete 'configure))
+           #:make-flags
+           #~(list (string-append "DESTDIR=" #$output)
+                   "PREFIX=")))
+    (synopsis "Procedural platformer-game map generation library")
+    (description
+     "libgeramun is a set of stochastic, procedural platformer-game map
+generation routines.
+The routines are meant to produce maps with a Terraria-like look and feel.")
+    (home-page "https://gitlab.com/hydren/libgeramun")
+    (license license:gpl2+))))
+
  (define-public ode
    (package
      (name "ode")
diff --git a/gnu/packages/patches/libgeramun-add-makefile.patch b/gnu/packages/patches/libgeramun-add-makefile.patch
new file mode 100644
index 0000000000..b61e730526
--- /dev/null
+++ b/gnu/packages/patches/libgeramun-add-makefile.patch
@@ -0,0 +1,80 @@
+From 38f790a0526de3ca74480e8e3f7504ff648ba272 Mon Sep 17 00:00:00 2001
+From: AwesomeAdam54321 <adam.faiz@disroot.org>
+Date: Sun, 12 Mar 2023 01:30:46 +0800
+Subject: [PATCH] libgeramun: add makefile.
+
+Adapted from https://gitlab.com/hydren/terrarium/-/raw/master/build/linux-gcc-sdl2-release/src_libs/libgeramun/subdir.mk
+---
+ Makefile | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 60 insertions(+)
+ create mode 100644 Makefile
+
+diff --git a/Makefile b/Makefile
+new file mode 100644
+index 0000000..38608c1
+--- /dev/null
++++ b/Makefile
+@@ -0,0 +1,60 @@
++################################################################################
++# Automatically-generated file. Do not edit!
++################################################################################
++
++# Add inputs and outputs from these tool invocations to the build variables
++CPP_SRCS += \
++brush.cpp \
++cave.cpp \
++debug.cpp \
++generators.cpp \
++midpoint_displacement.cpp \
++miners.cpp \
++preview_callback.cpp \
++random_walk.cpp \
++spring.cpp \
++surf_replacer.cpp
++
++OBJS += \
++brush.o \
++cave.o \
++debug.o \
++generators.o \
++midpoint_displacement.o \
++miners.o \
++preview_callback.o \
++random_walk.o \
++spring.o \
++surf_replacer.o
++
++SRCDIR ?= .
++INCLUDE_PATH ?= ${SRCDIR}/include
++PREFIX ?= /usr/local
++CFLAGS = -O3 -Wall -fPIC -c -fmessage-length=0 -MMD -MP
++
++all: libgeramun.so
++
++libgeramun.so: $(OBJS) $(USER_OBJS)
++	@echo 'Building target: $@'
++	@echo 'Invoking: GCC C++ Linker'
++	g++ -shared -o "libgeramun.so" $(OBJS) $(USER_OBJS) $(LIBS)
++	@echo 'Finished building target: $@'
++	@echo ' '
++
++install: all
++	install -d $(DESTDIR)$(PREFIX)
++	cp -r include $(DESTDIR)$(PREFIX)
++	install -d $(DESTDIR)$(PREFIX)/lib
++	install -m 644 libgeramun.so $(DESTDIR)$(PREFIX)/lib
++
++%.o: %.cpp
++	@echo 'Building file: $<'
++	@echo 'Invoking: GCC C++ Compiler'
++	g++ -I${INCLUDE_PATH} $(CFLAGS) -MF"$(@:%.o=%.d)" -MT"$(@)" -o "$@" "$<"
++	@echo 'Finished building: $<'
++	@echo ' '
++
++clean:
++	rm $(wildcard *.o) libgeramun.so
++
++
+--
+2.39.2
+
