diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93bf5aa..291baa6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to RigDoctor are recorded here. Format follows
 (`MAJOR.MINOR.PATCH`, pre-1.0). `__version__` and `pyproject.toml` must match the git
 release tag (so the auto-updater, D18, can compare versions).
 
+## [0.28.0] - 2026-05-22
+### Added
+- **AI explanations now include recent game logs.** When you press "Explain with AI" on a
+  diagnostic, RigDoctor also gathers recent **Proton** (`~/steam-<appid>.log`) and **Steam**
+  console logs (`core/gamelogs.py`, tail-read + size-bounded) and passes them to the model, so
+  it can correlate log errors with the sensor findings and pinpoint *when* something went wrong.
+### Fixed
+- The AI explanation popup now **renders Markdown** (headings, bold, lists) instead of showing
+  raw `###`/`**` — `QTextEdit.setMarkdown`, and the model is told to answer in Markdown.
+
 ## [0.27.1] - 2026-05-22
 ### Changed
 - AI assistant: selecting **Ollama** now pre-fills the model field with **`qwen2.5:7b`** (a
diff --git a/pyproject.toml b/pyproject.toml
index f657848..a0fc176 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "rigdoctor"
-version = "0.27.1"
+version = "0.28.0"
 description = "Modular hardware monitoring & crash diagnostics for Linux gamers."
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/src/rigdoctor/__init__.py b/src/rigdoctor/__init__.py
index 379d0a2..b93f7f6 100644
--- a/src/rigdoctor/__init__.py
+++ b/src/rigdoctor/__init__.py
@@ -1,3 +1,3 @@
 """RigDoctor — modular hardware monitoring & crash diagnostics for Linux gamers."""
 
-__version__ = "0.27.1"
+__version__ = "0.28.0"
diff --git a/src/rigdoctor/core/ai.py b/src/rigdoctor/core/ai.py
index 12fe33f..b4925e6 100644
--- a/src/rigdoctor/core/ai.py
+++ b/src/rigdoctor/core/ai.py
@@ -34,12 +34,14 @@ ANTHROPIC_VERSION = "2023-06-01"
 
 SYSTEM_PROMPT = (
     "You are RigDoctor's hardware-diagnostics assistant for Linux gamers. You are given the "
-    "structured findings RigDoctor collected from this machine, and a set of reference facts. "
-    "Explain in plain language what the findings mean, identify the most likely root cause of "
-    "any problem, and give concrete, ordered next steps (exact commands where useful). Base "
-    "your reasoning ONLY on the findings and reference facts provided — do not invent readings, "
-    "hardware, or log lines. Be concise and practical. Present fixes as suggestions, and clearly "
-    "warn before any step that could cause data loss or instability."
+    "structured findings RigDoctor collected from this machine — which may include recent game, "
+    "Proton, and system log excerpts — plus a set of reference facts. Explain in plain language "
+    "what they mean, correlate any log errors with the findings to pinpoint WHEN and WHY things "
+    "went wrong, identify the most likely root cause, and give concrete, ordered next steps "
+    "(exact commands where useful). Base your reasoning ONLY on the data and reference facts "
+    "provided — do not invent readings, hardware, or log lines. Be concise and practical. "
+    "Present fixes as suggestions, and clearly warn before any step that could cause data loss "
+    "or instability. Format your answer in Markdown."
 )
 
 
diff --git a/src/rigdoctor/core/gamelogs.py b/src/rigdoctor/core/gamelogs.py
new file mode 100644
index 0000000..f0c5a9b
--- /dev/null
+++ b/src/rigdoctor/core/gamelogs.py
@@ -0,0 +1,67 @@
+"""Collect recent game / Proton / Steam logs to enrich an AI diagnostic (M14).
+
+Reads logs that already exist on disk — no change to how the game is launched. Two reliable
+sources: Proton's per-app log (``~/steam-<appid>.log``, written when ``PROTON_LOG=1``) and
+Steam's own console log. Each is tail-read and size-bounded so the AI prompt stays small. The
+text is fed to the AI alongside the findings so it can see *when* something went wrong (a
+vkd3d/DXVK error, a crash line, the exit code) rather than only the sensor summary.
+"""
+
+from __future__ import annotations
+
+import os
+from pathlib import Path
+
+# Steam keeps logs under its install root; ~/.steam/steam usually symlinks to the real one.
+_STEAM_LOG_DIRS = ("~/.steam/steam/logs", "~/.local/share/Steam/logs", "~/.steam/root/logs")
+_STEAM_LOG_FILES = ("console-linux.txt", "console_log.txt", "stderr.txt")
+
+
+def _tail(path: Path, max_bytes: int) -> str:
+    """Last ``max_bytes`` of a file, decoded leniently (empty string on error)."""
+    try:
+        size = path.stat().st_size
+        with path.open("rb") as fh:
+            if size > max_bytes:
+                fh.seek(size - max_bytes)
+            return fh.read().decode("utf-8", "replace")
+    except OSError:
+        return ""
+
+
+def _proton_logs() -> list[Path]:
+    try:
+        logs = list(Path.home().glob("steam-*.log"))
+    except OSError:
+        return []
+    return sorted(logs, key=lambda p: p.stat().st_mtime, reverse=True)
+
+
+def _steam_console() -> Path | None:
+    for directory in _STEAM_LOG_DIRS:
+        base = Path(os.path.expanduser(directory))
+        for name in _STEAM_LOG_FILES:
+            candidate = base / name
+            if candidate.exists():
+                return candidate
+    return None
+
+
+def available() -> bool:
+    return bool(_proton_logs() or _steam_console())
+
+
+def collect(max_bytes: int = 6000) -> str:
+    """Recent Proton + Steam log tails as one labelled text block ('' if none)."""
+    sections: list[str] = []
+    protons = _proton_logs()
+    if protons:
+        tail = _tail(protons[0], max_bytes).strip()
+        if tail:
+            sections.append(f"--- Proton log ({protons[0].name}) ---\n{tail}")
+    console = _steam_console()
+    if console:
+        tail = _tail(console, max_bytes).strip()
+        if tail:
+            sections.append(f"--- Steam log ({console.name}) ---\n{tail}")
+    return "\n\n".join(sections)
diff --git a/src/rigdoctor/gui/diagnostic_dialog.py b/src/rigdoctor/gui/diagnostic_dialog.py
index a806110..09d6edc 100644
--- a/src/rigdoctor/gui/diagnostic_dialog.py
+++ b/src/rigdoctor/gui/diagnostic_dialog.py
@@ -111,10 +111,13 @@ class DiagnosticDialog(QDialog):
         threading.Thread(target=self._work_explain, daemon=True).start()
 
     def _work_explain(self) -> None:
-        from ..core import ai
+        from ..core import ai, gamelogs
 
         text = ai.format_findings(self._result.findings, header="Diagnostic findings:")
         text += "\n\nCapture summary:\n" + render_summary(self._result.summary)
+        logs = gamelogs.collect()
+        if logs:
+            text += "\n\nRecent game/Proton/Steam logs (newest at the end):\n" + logs
         self._explained.emit(ai.explain(text))
 
     def _on_explained(self, result) -> None:
@@ -133,7 +136,7 @@ class DiagnosticDialog(QDialog):
         view = QTextEdit()
         view.setObjectName("Report")
         view.setReadOnly(True)
-        view.setPlainText(text)
+        view.setMarkdown(text)  # the model replies in Markdown — render it
         lay.addWidget(view)
         note = QLabel("AI-generated suggestions — verify before acting, especially anything that changes settings or data.")
         note.setObjectName("Muted")
diff --git a/tests/test_gamelogs.py b/tests/test_gamelogs.py
new file mode 100644
index 0000000..abe4c5d
--- /dev/null
+++ b/tests/test_gamelogs.py
@@ -0,0 +1,49 @@
+"""Tests for M14 game/Proton/Steam log collection."""
+
+import tempfile
+import unittest
+from pathlib import Path
+from unittest import mock
+
+from rigdoctor.core import gamelogs
+
+
+class TailTests(unittest.TestCase):
+    def test_tail_returns_last_bytes(self):
+        path = Path(tempfile.mkdtemp()) / "x.log"
+        path.write_text("A" * 100 + "TAIL")
+        out = gamelogs._tail(path, 4)
+        self.assertEqual(out, "TAIL")
+
+    def test_tail_short_file(self):
+        path = Path(tempfile.mkdtemp()) / "x.log"
+        path.write_text("short")
+        self.assertEqual(gamelogs._tail(path, 9999), "short")
+
+    def test_tail_missing(self):
+        self.assertEqual(gamelogs._tail(Path("/nope/x.log"), 10), "")
+
+
+class CollectTests(unittest.TestCase):
+    def test_collect_includes_proton_and_steam(self):
+        tmp = Path(tempfile.mkdtemp())
+        proton = tmp / "steam-570.log"
+        proton.write_text("err: vkd3d device lost")
+        console = tmp / "console-linux.txt"
+        console.write_text("Game removed AppID 570 ... exit")
+        with mock.patch.object(gamelogs, "_proton_logs", return_value=[proton]), \
+             mock.patch.object(gamelogs, "_steam_console", return_value=console):
+            out = gamelogs.collect()
+        self.assertIn("Proton log", out)
+        self.assertIn("vkd3d", out)
+        self.assertIn("Steam log", out)
+        self.assertIn("exit", out)
+
+    def test_collect_empty_when_none(self):
+        with mock.patch.object(gamelogs, "_proton_logs", return_value=[]), \
+             mock.patch.object(gamelogs, "_steam_console", return_value=None):
+            self.assertEqual(gamelogs.collect(), "")
+
+
+if __name__ == "__main__":
+    unittest.main()