diff --git a/ImperatorToCK3/CK3/Cultures/CultureCollection.cs b/ImperatorToCK3/CK3/Cultures/CultureCollection.cs
index eced0e93a..96eacc0a3 100644
--- a/ImperatorToCK3/CK3/Cultures/CultureCollection.cs
+++ b/ImperatorToCK3/CK3/Cultures/CultureCollection.cs
@@ -86,6 +86,8 @@ private void LoadInvalidatingCultureIds(ICollection<string> ck3ModFlags, Buffere
 	}
 	
 	public void LoadCultures(ModFilesystem ck3ModFS) {
+		Logger.Info("Loading cultures...");
+		
 		var parser = new Parser();
 		parser.RegisterRegex(CommonRegexes.String, (reader, cultureId) => LoadCulture(cultureId, reader));
 		parser.IgnoreAndLogUnregisteredItems();
@@ -95,6 +97,8 @@ public void LoadCultures(ModFilesystem ck3ModFS) {
 	}
 	
 	public void LoadConverterCultures(string converterCulturesPath) {
+		Logger.Info("Loading converter cultures...");
+		
 		var parser = new Parser();
 		parser.RegisterRegex(CommonRegexes.String, (reader, cultureId) => LoadCulture(cultureId, reader));
 		parser.IgnoreAndLogUnregisteredItems();
@@ -149,6 +153,8 @@ private void ReplaceInvalidatedParents() {
 	}
 
 	public void LoadNameLists(ModFilesystem ck3ModFS) {
+		Logger.Info("Loading name lists...");
+		
 		var parser = new Parser();
 		parser.RegisterRegex(CommonRegexes.String, (reader, nameListId) => {
 			NameListCollection.AddOrReplace(new NameList(nameListId, reader));
@@ -156,6 +162,18 @@ public void LoadNameLists(ModFilesystem ck3ModFS) {
 		parser.IgnoreAndLogUnregisteredItems();
 		parser.ParseGameFolder("common/culture/name_lists", ck3ModFS, "txt", recursive: true, logFilePaths: true);
 	}
+	
+	public void LoadInnovationIds(ModFilesystem ck3ModFS) {
+		Logger.Info("Loading CK3 innovation IDs...");
+		
+		var parser = new Parser();
+		parser.RegisterRegex(CommonRegexes.String, (reader, innovationId) => {
+			InnovationIds.Add(innovationId);
+			ParserHelpers.IgnoreItem(reader);
+		});
+		parser.IgnoreAndLogUnregisteredItems();
+		parser.ParseGameFolder("common/culture/innovations", ck3ModFS, "txt", recursive: true, logFilePaths: true);
+	}
 
 	private string? GetCK3CultureIdForImperatorCountry(Country country, CultureMapper cultureMapper, ProvinceMapper provinceMapper) {
 		var irCulture = country.PrimaryCulture ?? country.Monarch?.Culture;
@@ -182,6 +200,7 @@ public void LoadNameLists(ModFilesystem ck3ModFS) {
 		var innovationMapper = new InnovationMapper();
 		innovationMapper.LoadLinksAndBonuses("configurables/inventions_to_innovations_map.txt");
 		innovationMapper.LogUnmappedInventions(inventionsDB, irLocDB);
+		innovationMapper.RemoveMappingsWithInvalidInnovations(InnovationIds);
 		
 		// Group I:R countries by corresponding CK3 culture.
 		var countriesByCulture = countries.Select(c => new {
@@ -207,6 +226,7 @@ public void LoadNameLists(ModFilesystem ck3ModFS) {
 	
 	protected readonly PillarCollection PillarCollection;
 	protected readonly IdObjectCollection<string, NameList> NameListCollection = new();
+	protected readonly HashSet<string> InnovationIds = [];
 	
 	private CultureData cultureData = new();
 	private readonly Parser cultureDataParser = new();
diff --git a/ImperatorToCK3/CK3/World.cs b/ImperatorToCK3/CK3/World.cs
index 60f9d1e35..9766d6d2a 100644
--- a/ImperatorToCK3/CK3/World.cs
+++ b/ImperatorToCK3/CK3/World.cs
@@ -115,11 +115,9 @@ public World(Imperator.World impWorld, Configuration config) {
 		Logger.Info("Loading converter cultural pillars...");
 		CulturalPillars.LoadConverterPillars("configurables/cultural_pillars");
 		Cultures = new CultureCollection(ck3ColorFactory, CulturalPillars, config.GetCK3ModFlags());
-		Logger.Info("Loading name lists...");
 		Cultures.LoadNameLists(ModFS);
-		Logger.Info("Loading cultures...");
+		Cultures.LoadInnovationIds(ModFS);
 		Cultures.LoadCultures(ModFS);
-		Logger.Info("Loading converter cultures...");
 		Cultures.LoadConverterCultures("configurables/converter_cultures.txt");
 		Logger.IncrementProgress();
 
diff --git a/ImperatorToCK3/Mappers/Technology/InnovationBonus.cs b/ImperatorToCK3/Mappers/Technology/InnovationBonus.cs
index f6f4052f9..b6e34d2d4 100644
--- a/ImperatorToCK3/Mappers/Technology/InnovationBonus.cs
+++ b/ImperatorToCK3/Mappers/Technology/InnovationBonus.cs
@@ -6,22 +6,22 @@ namespace ImperatorToCK3.Mappers.Technology;
 
 public sealed class InnovationBonus { // TODO: add tests
 	private readonly HashSet<string> imperatorInventions = [];
-	private string? ck3Innovation;
+	public string? CK3InnovationId { get; private set; }
 	
 	public InnovationBonus(BufferedReader bonusReader) {
 		var parser = new Parser();
 		parser.RegisterKeyword("ir", reader => imperatorInventions.Add(reader.GetString()));
-		parser.RegisterKeyword("ck3", reader => ck3Innovation = reader.GetString());
+		parser.RegisterKeyword("ck3", reader => CK3InnovationId = reader.GetString());
 		parser.IgnoreAndLogUnregisteredItems();
 		parser.ParseStream(bonusReader);
 		
-		if (ck3Innovation is null) {
+		if (CK3InnovationId is null) {
 			Logger.Warn($"Innovation bonus from {string.Join(", ", imperatorInventions)} has no CK3 innovation.");
 		}
 	}
 	
 	public KeyValuePair<string, ushort>? GetProgress(IEnumerable<string> activeInventions) {
-		if (ck3Innovation is null) {
+		if (CK3InnovationId is null) {
 			return null;
 		}
 		
@@ -33,6 +33,6 @@ public InnovationBonus(BufferedReader bonusReader) {
 			return null;
 		}
 		
-		return new(ck3Innovation, (ushort)progress);
+		return new(CK3InnovationId, (ushort)progress);
 	}
 }
\ No newline at end of file
diff --git a/ImperatorToCK3/Mappers/Technology/InnovationLink.cs b/ImperatorToCK3/Mappers/Technology/InnovationLink.cs
index bc44bca75..54443868a 100644
--- a/ImperatorToCK3/Mappers/Technology/InnovationLink.cs
+++ b/ImperatorToCK3/Mappers/Technology/InnovationLink.cs
@@ -4,21 +4,21 @@ namespace ImperatorToCK3.Mappers.Technology;
 
 public sealed class InnovationLink { // TODO: ADD TESTS
 	private string? imperatorInvention;
-	private string? ck3Innovation;
+	public string? CK3InnovationId { get; private set; }
 	
 	public InnovationLink(BufferedReader linkReader) {
 		var parser = new Parser();
 		parser.RegisterKeyword("ir", reader => imperatorInvention = reader.GetString());
-		parser.RegisterKeyword("ck3", reader => ck3Innovation = reader.GetString());
+		parser.RegisterKeyword("ck3", reader => CK3InnovationId = reader.GetString());
 		parser.IgnoreAndLogUnregisteredItems();
 		parser.ParseStream(linkReader);
 		
-		if (ck3Innovation is null) {
+		if (CK3InnovationId is null) {
 			Logger.Warn($"Innovation link from {imperatorInvention} has no CK3 innovation.");
 		}
 		
 		if (imperatorInvention is null) {
-			Logger.Warn($"Innovation link to {ck3Innovation} has no Imperator invention.");
+			Logger.Warn($"Innovation link to {CK3InnovationId} has no Imperator invention.");
 		}
 	}
 	
@@ -26,6 +26,6 @@ public InnovationLink(BufferedReader linkReader) {
 		if (imperatorInvention is null) {
 			return null;
 		}
-		return imperatorInvention == irInvention ? ck3Innovation : null;
+		return imperatorInvention == irInvention ? CK3InnovationId : null;
 	}
 }
\ No newline at end of file
diff --git a/ImperatorToCK3/Mappers/Technology/InnovationMapper.cs b/ImperatorToCK3/Mappers/Technology/InnovationMapper.cs
index a67a7b603..5bf8ab052 100644
--- a/ImperatorToCK3/Mappers/Technology/InnovationMapper.cs
+++ b/ImperatorToCK3/Mappers/Technology/InnovationMapper.cs
@@ -70,4 +70,15 @@ public void LogUnmappedInventions(InventionsDB inventionsDB, LocDB irLocDB) {
 	}
 
 	// TODO: ALSO LOG UNMAPPED CK3 MARTIAL AND CIVIC INNOVATIONS
+
+	public void RemoveMappingsWithInvalidInnovations(ISet<string> innovationIds) {
+		int removedCount = 0;
+		
+		removedCount += innovationLinks
+			.RemoveAll(link => link.CK3InnovationId is null || !innovationIds.Contains(link.CK3InnovationId));
+		removedCount += innovationBonuses
+			.RemoveAll(bonus => bonus.CK3InnovationId is null || !innovationIds.Contains(bonus.CK3InnovationId));
+		
+		Logger.Debug($"Removed {removedCount} technology mappings with invalid CK3 innovations.");
+	}
 }