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diff --git a/danger/rules/roulette/Dangerfile b/danger/rules/roulette/Dangerfile
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+# frozen_string_literal: true
+
+MESSAGE = <<MARKDOWN
+## Reviewer roulette
+
+Changes that require review have been detected! A merge request is normally
+reviewed by both a reviewer and a maintainer in its primary category and by a
+maintainer in all other categories.
+MARKDOWN
+
+CATEGORY_TABLE_HEADER = <<MARKDOWN
+
+To spread load more evenly across eligible reviewers, Danger has picked a candidate for each
+review slot. Feel free to
+[override these selections](https://about.gitlab.com/handbook/engineering/projects/#gitaly)
+if you think someone else would be better-suited
+or use the [GitLab Review Workload Dashboard](https://gitlab-org.gitlab.io/gitlab-roulette/) to find other available reviewers.
+
+To read more on how to use the reviewer roulette, please take a look at the
+[Engineering workflow](https://about.gitlab.com/handbook/engineering/workflow/#basics)
+and [code review guidelines](https://docs.gitlab.com/ee/development/code_review.html).
+Please consider assigning a reviewer or maintainer who is a
+[domain expert](https://about.gitlab.com/handbook/engineering/projects/#gitaly) in the area of the merge request.
+
+Once you've decided who will review this merge request, mention them as you
+normally would! Danger does not automatically notify them for you.
+
+| Category | Reviewer | Maintainer |
+| -------- | -------- | ---------- |
+MARKDOWN
+
+OPTIONAL_REVIEW_TEMPLATE = '%{role} review is optional for %{category}'
+NOT_AVAILABLE_TEMPLATE = 'No %{role} available'
+
+def note_for_spins_role(spins, role)
+  spins.each do |spin|
+    note = note_for_spin_role(spin, role)
+
+    return note if note
+  end
+
+  NOT_AVAILABLE_TEMPLATE % { role: role }
+end
+
+def note_for_spin_role(spin, role)
+  if spin.optional_role == role
+    return OPTIONAL_REVIEW_TEMPLATE % { role: role.capitalize, category: helper.label_for_category(spin.category) }
+  end
+
+  spin.public_send(role)&.markdown_name(author: roulette.team_mr_author) # rubocop:disable GitlabSecurity/PublicSend
+end
+
+def markdown_row_for_spins(category, spins_array)
+  reviewer_note = note_for_spins_role(spins_array, :reviewer)
+  maintainer_note = note_for_spins_role(spins_array, :maintainer)
+
+  "| #{helper.label_for_category(category)} | #{reviewer_note} | #{maintainer_note} |"
+end
+
+changes = project_helper.changes_by_category
+
+if changes.any?
+  categories = changes.keys
+  project = project_helper.project_name
+
+  random_roulette_spins = roulette.spin(project, [nil], timezone_experiment: false)
+
+  rows = random_roulette_spins.map do |spin|
+    markdown_row_for_spins(spin.category, [spin])
+  end
+
+  markdown(MESSAGE)
+  markdown(CATEGORY_TABLE_HEADER + rows.join("\n")) unless rows.empty?
+end