diff --git a/d/DFTB+/DFTB+-21.2-intel-2020b-Python-3.8.6.eb b/d/DFTB+/DFTB+-21.2-intel-2020b-Python-3.8.6.eb
new file mode 100644
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+++ b/d/DFTB+/DFTB+-21.2-intel-2020b-Python-3.8.6.eb
@@ -0,0 +1,81 @@
+# IT4Innovations
+# LK 2022
+
+easyblock = 'CMakeMake'
+
+name = 'DFTB+'
+version = '21.2'
+versionsuffix = '-Python-%(pyver)s'
+
+homepage = 'https://www.dftb-plus.info'
+description = """DFTB+ is a fast and efficient versatile quantum mechanical simulation package.
+It is based on the Density Functional Tight Binding (DFTB) method, containing
+almost all of the useful extensions which have been developed for the DFTB
+framework so far.  Using DFTB+ you can carry out quantum mechanical simulations
+like with ab-initio density functional theory based packages, but in an
+approximate way gaining typically around two order of magnitude in speed."""
+
+toolchain = {'name': 'intel', 'version': '2020b'}
+# AMD/intel cpu
+#toolchainopts = {'lowopt': True, 'optarch': False} # original
+import os
+if os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
+	toolchainopts = {'lowopt': True, 'optarch': 'march=core-avx2'}
+else:
+	toolchainopts = {'lowopt': True, 'optarch': False}
+
+
+local_external_dir = '%%(builddir)s/dftbplus-%%(version)s/external/%s/origin/'
+local_external_extract = 'mkdir -p %s && tar -C %s' % (local_external_dir, local_external_dir)
+local_external_extract += ' --strip-components=1 -xzf %%s'
+
+sources = [
+    {
+        # DFTB+ source code
+        'source_urls': ['https://github.com/dftbplus/dftbplus/archive'],
+        'download_filename': '%(version)s.tar.gz',
+        'filename': SOURCE_TAR_GZ,
+    },
+    {
+        # Slater-Koster (slakos) data for testing
+        'source_urls': ['https://github.com/dftbplus/testparams/archive'],
+        'download_filename': 'd0ea16df2b56d14c7c3dc9329a8d3bac9fea50a0.tar.gz',
+        'filename': 'slakos-data-%(version)s.tar.gz',
+        'extract_cmd': local_external_extract % ('slakos', 'slakos'),
+    },
+]
+
+builddependencies = [
+    ('CMake', '3.18.4'),
+]
+
+dependencies = [
+    ('Python', '3.8.6'),
+    ('SciPy-bundle', '2020.11'),
+    ('arpack-ng', '3.8.0'),
+    ('dftd3-lib', '0.9.2', '', ('GCC', '10.2.0')),
+]
+
+# Link to Arpack
+local_makeopts = ' WITH_ARPACK=1 ARPACK_LIBS="-L$EBROOTARPACKMINNG/lib -larpack" ARPACK_NEEDS_LAPACK=1'
+# Use DFTD3 from EB
+local_makeopts += ' WITH_DFTD3=1 COMPILE_DFTD3=0 DFTD3_INCS="-I$EBROOTDFTD3MINLIB/include"'
+local_makeopts += ' DFTD3_LIBS="-L$EBROOTDFTD3MINLIB/lib -ldftd3"'
+
+buildopts = local_makeopts
+
+#runtest = 'test' + local_makeopts
+
+installopts = 'INSTALLDIR="%(installdir)s"'
+
+sanity_check_paths = {
+    'files': ['bin/' + x for x in ['dftb+', 'dp_bands', 'dp_dos', 'gen2cif', 'gen2xyz', 'makecube',
+                                   'modes', 'repeatgen', 'straingen', 'waveplot', 'xyz2gen']],
+    'dirs': ['lib/python%(pyshortver)s/site-packages']
+}
+
+sanity_check_commands = [('python', '-c "import dptools"')]
+
+modextrapaths = {'PYTHONPATH': 'lib/python%(pyshortver)s/site-packages'}
+
+moduleclass = 'phys'