diff --git a/dev-scheme/cyclone/Manifest b/dev-scheme/cyclone/Manifest
new file mode 100644
index 0000000000..7d9a1e32b6
--- /dev/null
+++ b/dev-scheme/cyclone/Manifest
@@ -0,0 +1 @@
+DIST cyclone-0.28.0.tar.gz 3683280 BLAKE2B 7f5e5982104094bbadc9cde545b3d9d21b3f000136ff07543b4fd4f8a5e79799b8adf8c480bc65f15645e62ec9ae5cccc9c5ae9305334ae2ef080eab6d730045 SHA512 e106a0ef779a4829b729a928e30cf80409e6fe6bb14859c595098e0bfe18fcd5d9ba8859d607a55ec2f97b2c58ec8ccb3405b41de34044994441889718c6caec
diff --git a/dev-scheme/cyclone/cyclone-0.28.0.ebuild b/dev-scheme/cyclone/cyclone-0.28.0.ebuild
new file mode 100644
index 0000000000..7291e1b0f7
--- /dev/null
+++ b/dev-scheme/cyclone/cyclone-0.28.0.ebuild
@@ -0,0 +1,51 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# Cyclone is a self-hosting Scheme to C compiler
+# cyclone-bootstrap is the Cyclone SOURCE transpired by it to C
+
+EAPI=7
+
+inherit flag-o-matic
+
+DESCRIPTION="Scheme R7RS to C compiler"
+HOMEPAGE="http://justinethier.github.io/cyclone/"
+
+if [[ "${PV}" == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/justinethier/${PN}-bootstrap.git"
+else
+	SRC_URI="https://github.com/justinethier/${PN}-bootstrap/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~amd64"
+	S="${WORKDIR}/${PN}-bootstrap-${PV}"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+
+DEPEND="
+	dev-libs/concurrencykit
+"
+RDEPEND="
+	${DEPEND}
+"
+
+src_configure() {
+	append-cflags -fPIC -rdynamic -Iinclude
+	append-ldflags -L. -Wl,--export-dynamic
+	tc-export CC
+}
+
+src_compile() {
+	emake
+}
+
+src_test() {
+	emake test LDFLAGS=""
+}
+
+src_install() {
+	einstalldocs
+
+	emake PREFIX="/usr" DESTDIR="${D}" install
+}
diff --git a/dev-scheme/cyclone/cyclone-9999.ebuild b/dev-scheme/cyclone/cyclone-9999.ebuild
new file mode 100644
index 0000000000..7291e1b0f7
--- /dev/null
+++ b/dev-scheme/cyclone/cyclone-9999.ebuild
@@ -0,0 +1,51 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# Cyclone is a self-hosting Scheme to C compiler
+# cyclone-bootstrap is the Cyclone SOURCE transpired by it to C
+
+EAPI=7
+
+inherit flag-o-matic
+
+DESCRIPTION="Scheme R7RS to C compiler"
+HOMEPAGE="http://justinethier.github.io/cyclone/"
+
+if [[ "${PV}" == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/justinethier/${PN}-bootstrap.git"
+else
+	SRC_URI="https://github.com/justinethier/${PN}-bootstrap/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~amd64"
+	S="${WORKDIR}/${PN}-bootstrap-${PV}"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+
+DEPEND="
+	dev-libs/concurrencykit
+"
+RDEPEND="
+	${DEPEND}
+"
+
+src_configure() {
+	append-cflags -fPIC -rdynamic -Iinclude
+	append-ldflags -L. -Wl,--export-dynamic
+	tc-export CC
+}
+
+src_compile() {
+	emake
+}
+
+src_test() {
+	emake test LDFLAGS=""
+}
+
+src_install() {
+	einstalldocs
+
+	emake PREFIX="/usr" DESTDIR="${D}" install
+}
diff --git a/dev-scheme/cyclone/metadata.xml b/dev-scheme/cyclone/metadata.xml
new file mode 100644
index 0000000000..befb734c73
--- /dev/null
+++ b/dev-scheme/cyclone/metadata.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+    <maintainer type="person">
+        <email>xgqt@riseup.net</email>
+        <name>Maciej Barć</name>
+    </maintainer>
+    <longdescription lang="en">
+        Cyclone Scheme is a brand-new compiler that allows real-world
+        application development using the R7RS Scheme Language standard.
+        We provide modern features and a stable system capable of generating
+        fast native binaries.
+        Cheney on the MTA is used by Cyclone's runtime to implement full tail
+        recursion, continuations, and generational garbage collection.
+        In addition, the Cheney on the MTA concept has been extended to allow
+        execution of multiple native threads. An on-the-fly garbage collector
+        is used to manage the second-generation heap and perform major
+        collections without "stopping the world".
+    </longdescription>
+    <upstream>
+        <remote-id type="github">justinethier/cyclone-bootstrap</remote-id>
+        <remote-id type="github">justinethier/cyclone</remote-id>
+    </upstream>
+</pkgmetadata>