diff --git a/richings21/README.md b/richings21/README.md
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+# Richings 2021
+
+Trying to create a zoom-in simulation of a specific halo from https://doi.org/10.1093/mnras/staa4013.
+
+FoF ID 128
+
+
+## ICs 
+
+
+- MusIC-panphasia: [54a88338aaa4afc5e4ba2b07b633372994d3b5d4](https://github.com/glatterf42/music-panphasia/tree/54a88338aaa4afc5e4ba2b07b633372994d3b5d4)
+- no compile-time parameters
+- `ics_richings21.conf` 
+
+
+## Swift
+
+- Swift version: [d7e001621e4de4a277407179ec2137037d1f4927](https://gitlab.cosma.dur.ac.uk/swift/swiftsim/-/tree/d7e001621e4de4a277407179ec2137037d1f4927)
+- configure: `./configure --enable-fof --enable-compiler-warnings=yes --enable-stand-alone-fof --with-numa`
+- execute: `./swift  --cosmology --self-gravity --fof --limiter swift.yml  --threads 16 --pin`
+
+
+## Simulation-Runs (levelmin, levelmin_TF, levelmax)
+
+- 7,7,9
+- 7,7,10
+- 7,9,10
diff --git a/richings21/ics_richings21.conf b/richings21/ics_richings21.conf
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+++ b/richings21/ics_richings21.conf
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+# Zoom Initial Conditions for halo 20770177 in simulation RefL0100N1504 (EAGLE project)
+# Details on this halo can be found on https://cosmicweb.astro.univie.ac.at/simulation/RefL0100N1504/halo/20770177
+# This file has been generated by CosmICweb @2022-05-18T10:34:27.198Z
+
+
+[setup]
+boxlength   = 67.77
+zstart       = 127
+levelmin     = 7
+levelmin_TF  = 7
+levelmax     = 9
+baryons     = no
+use_2LPT    = yes
+use_LLA     = no
+padding    = 8
+
+# Ellipsoidal refinement region defined on unity cube
+# This minimum bounding ellipsoid has been obtained from
+# particles within 4 R200c of the halo center
+region                     = ellipsoid
+region_ellipsoid_matrix[0] = 172.10164, 39.010014, 8.168301
+region_ellipsoid_matrix[1] = 39.010014, 224.06522, 57.19466
+region_ellipsoid_matrix[2] = 8.168301, 57.19466, 349.7522
+region_ellipsoid_center    = 0.9277942, 0.35917562, 0.93529713
+
+[cosmology]
+Omega_m  = 0.307
+Omega_L  = 0.693
+Omega_b  = 0.04825
+H0       = 67.77
+sigma_8  = 0.8288
+nspec    = 0.9611
+transfer = eisenstein
+
+[random]
+generator = PANPHASIA
+descriptor =[Panph1,L16,(31250,23438,39063),S12,CH1050187043,EAGLE_L0100_VOL1]
+
+[poisson]
+fft_fine      = yes
+accuracy      = 1e-6
+grad_order    = 6
+laplace_order = 6
+
+[output]
+format                  = swift
+filename                = richings21_7_7_9.hdf5