diff --git a/.gitignore b/.gitignore
index 1b6625b..e683ef3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 *.pdf
 rubbish/
 .godot/
+.checksum.txt
+bins
diff --git a/Makefile b/Makefile
index 93d029f..734c070 100644
--- a/Makefile
+++ b/Makefile
@@ -3,12 +3,21 @@ help:
 	@echo "\tmake pdf"
 	@echo "\tmake creature"
 	@echo "\tmake show"
-	@echo "\tmake install-godot"
-	@echo "\tmake uninstall-godot"
+	@echo "\tmake check (to check your dependencies)"
+	@echo "\tsudo make install-godot"
+	@echo "\tsudo make uninstall-godot"
 
 .PHONY: pdf
 pdf: overview.pdf
 
+.PHONY: check
+check:
+	@which lowdown >/dev/null || echo 'install lowdown (optional)'
+	@which git-lfs >/dev/null || echo 'install git-lfs'
+	@which pdflatex >/dev/null || echo 'install pdflatex (optional)'
+	@which less >/dev/null || echo 'install less (you absolute cave-man)'
+	@godot --version | grep -q '3.2' || echo 'install godot version 3.2.3 using "make install-godot"'
+
 rubbish/:
 	mkdir rubbish
 
@@ -44,13 +53,17 @@ $(COLLECTION): overview.md World
 	@./parse.sh Mechanics/Stats.md >> $(COLLECTION)
 	@lowdown -sTterm $(COLLECTION) | less -R 
 
-install-godot: Godot_v4.2.2-stable_linux.x86_64
-	install -m 755 Godot_v4.2.2-stable_linux.x86_64 /usr/local/bin/godot
-	rm Godot_v4.2.2-stable_linux.x86_64.zip
-	rm Godot_v4.2.2-stable_linux.x86_64
-Godot_v4.2.2-stable_linux.x86_64:
-	wget https://github.com/godotengine/godot/releases/download/4.2.2-stable/Godot_v4.2.2-stable_linux.x86_64.zip
-	unzip Godot_v4.2.2-stable_linux.x86_64.zip
+bins/:
+	@mkdir -p bins
+.checksum.txt:
+	curl https://downloads.tuxfamily.org/godotengine/3.2.3/SHA512-SUMS.txt | grep x11.64 > .checksum.txt
+Godot_v3.2.3-stable_x11.64: .checksum.txt bins/
+	wget https://downloads.tuxfamily.org/godotengine/3.2.3/Godot_v3.2.3-stable_x11.64.zip
+	sha512sum -c .checksum.txt
+	mv Godot_v3.2.3-stable_x11.64.zip bins/
+	cd bins/ && unzip Godot_v3.2.3-stable_x11.64.zip
+install-godot: Godot_v3.2.3-stable_x11.64
+	install -m 755 bins/Godot_v3.2.3-stable_x11.64 /usr/local/bin/godot
 
 .PHONY: uninstall-godot
 uninstall-godot:
@@ -58,4 +71,6 @@ uninstall-godot:
 
 .PHONY: clean
 clean:
-	$(RM) -r rubbish overview.tex $(COLLECTION)
+	$(RM) -r rubbish overview.tex $(COLLECTION) \
+	.checksum.txt \
+	bins