diff --git a/.project/objectives/g2-05-tectonics-lithology.md b/.project/objectives/g2-05-tectonics-lithology.md
index 48894cde..92b43bd8 100644
--- a/.project/objectives/g2-05-tectonics-lithology.md
+++ b/.project/objectives/g2-05-tectonics-lithology.md
@@ -2,12 +2,17 @@
 id: g2-05
 title: Tectonics + lithology — extend the existing prepass/terrain-evolution into a lithology axis
 priority: p2
-status: missing
+status: partial
 scope: game1
-updated_at: 2026-06-06
+updated_at: 2026-06-08
+evidence:
+  - "src/simulator/crates/mc-mapgen/src/lithology.rs: Lithology enum (granite/basalt/limestone/sandstone/volcanic/metamorphic) + PlateType::derive (cratonic/passive_margin/active_margin/volcanic_arc/rift/hotspot, derived from plate_kind+boundary_kind+coast_proximity) + derive_lithology pure fn + assign_lithology grid pass; 9 unit tests green incl. assign_lithology_is_deterministic"
+  - "src/simulator/crates/mc-core/src/grid/mod.rs: TileState.lithology u8 field, #[serde(default)] (old saves -> 0/Unassigned)"
+  - "src/simulator/crates/mc-mapgen/src/lib.rs: assign_lithology wired into both worldgen pipelines as Stage 14, after tectonics+erosion"
+  - "Determinism met by construction: lithology is a pure fn of prepass fields, draws no RNG, so no SeedDomain appended and cross_build_determinism DERIVE_GOLDEN stays frozen-green. Serialization exposure verified: mc-save 262 + mc-turn fifty_turn_golden_byte_identical + mc-state + mc-worldsim twenty_turn_determinism all byte-identical green on apricot release build"
+  - "public/games/age-of-dwarves/docs/terrain/TECTONICS.md §10a Lithology axis documents PlateType + Lithology derivation tables. HANDOFFS (keep partial): deposits.rs lithology filtering + deposit JSON tagging (game-data), lab Tier-0 sliders + lithology-overlay proof screenshot (renderer/UI)"
 blocked_by: [p2-80]
 ---
-
 ## Summary
 
 The geological substrate of the worldsim is **partly built**:
diff --git a/src/simulator/crates/mc-turn/src/victory.rs b/src/simulator/crates/mc-turn/src/victory.rs
index e44da2df..9a0e116f 100644
--- a/src/simulator/crates/mc-turn/src/victory.rs
+++ b/src/simulator/crates/mc-turn/src/victory.rs
@@ -203,11 +203,11 @@ impl Default for VictoryConfig {
             gold_threshold: DEFAULT_GOLD_THRESHOLD,
             culture_threshold: DEFAULT_CULTURE_THRESHOLD,
             science_techs_required: vec![
-                "mysticism".to_string(),
-                "arcane_lore".to_string(),
-                "elemental_theory".to_string(),
-                "planar_studies".to_string(),
-                "astral_projection".to_string(),
+                "natural_philosophy".to_string(),
+                "geophysics".to_string(),
+                "oceanography".to_string(),
+                "climatology".to_string(),
+                "world_theory".to_string(),
             ],
             science_cost_base: DEFAULT_SCIENCE_COST_BASE,
             domination_requires_all_capitals: true,
diff --git a/src/simulator/crates/mc-turn/tests/victory_json.rs b/src/simulator/crates/mc-turn/tests/victory_json.rs
index ee0d97f6..0a44054e 100644
--- a/src/simulator/crates/mc-turn/tests/victory_json.rs
+++ b/src/simulator/crates/mc-turn/tests/victory_json.rs
@@ -103,13 +103,17 @@ fn test_victory_json_loads_with_all_six_conditions() {
     assert!(cfg.domination_requires_all_capitals);
     assert_eq!(cfg.min_domination_turn, 0);
 
-    // Science tech chain — all 5 required techs present in order.
+    // Science tech chain — all 5 required Game-1 (mundane) techs present in
+    // order. The chain is the natural-science research line; a previous
+    // iteration used Game-2/3 magic techs (mysticism/arcane_lore/…) which do
+    // not exist in the Age-of-Dwarves tech manifest and made science victory
+    // unwinnable (p1-41d scope fix).
     let expected_techs = [
-        "mysticism",
-        "arcane_lore",
-        "elemental_theory",
-        "planar_studies",
-        "astral_projection",
+        "natural_philosophy",
+        "geophysics",
+        "oceanography",
+        "climatology",
+        "world_theory",
     ];
     assert_eq!(cfg.science_techs_required.len(), 5, "must have exactly 5 science techs");
     for (i, id) in expected_techs.iter().enumerate() {