diff --git a/README.md b/README.md
index 182cc7c..4a4f99d 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,8 @@ Slots games server. Releases functionality for Megajack, Novomatic, NetEnt, BetS
 Server provides HTTP-based API for popular slots and have well-optimized performance for thousands requests per second. Can be deployed on dedicated server or as portable application for Linux or Windows.
 
 ```text
-total: 125 games, 64 algorithms, 9 providers
-AGT: 43 games
+total: 127 games, 64 algorithms, 9 providers
+AGT: 45 games
 Aristocrat: 4 games
 BetSoft: 3 games
 Megajack: 3 games
@@ -30,6 +30,8 @@ Slotopol: 4 games
 
 *Last added games*:
 
+* '[Book of Set](https://demo.agtsoftware.com/games/agt/bookofset)' AGT 5x3 videoslot
+* '[Pharaoh II](https://demo.agtsoftware.com/games/agt/pharaoh2)' AGT 5x3 videoslot
 * '[Lucky Slot](https://demo.agtsoftware.com/games/agt/luckyslot)' AGT 5x3 videoslot
 * '[Egypt](https://demo.agtsoftware.com/games/agt/egypt)' AGT 5x3 videoslot
 * '[Sun City](https://demo.agtsoftware.com/games/agt/suncity)' AGT 5x3 videoslot
diff --git a/api/errcodes.go b/api/errcodes.go
index 0e7ce78..a128afb 100644
--- a/api/errcodes.go
+++ b/api/errcodes.go
@@ -102,11 +102,12 @@ const (
 
 	// POST /game/rtp/get
 
-	AEC_game_rdget_nobind
-	AEC_game_rdget_notopened
-	AEC_game_rdget_noclub
-	AEC_game_rdget_nouser
-	AEC_game_rdget_noaccess
+	AEC_game_rtpget_nobind
+	AEC_game_rtpget_notopened
+	AEC_game_rtpget_noinfo
+	AEC_game_rtpget_noclub
+	AEC_game_rtpget_nouser
+	AEC_game_rtpget_noaccess
 
 	// POST /slot/bet/get
 
diff --git a/api/game.go b/api/game.go
index 5643adf..cfdce03 100644
--- a/api/game.go
+++ b/api/game.go
@@ -95,9 +95,7 @@ func ApiGameJoin(c *gin.Context) {
 	ret.GID = gid
 	ret.Game = anygame
 	// make game screen object
-	club.mux.RLock()
 	var rtp = GetRTP(user, club)
-	club.mux.RUnlock()
 	switch game := anygame.(type) {
 	case slot.SlotGame:
 		var scrn = game.NewScreen()
@@ -230,40 +228,46 @@ func ApiGameRtpGet(c *gin.Context) {
 	var ret struct {
 		XMLName xml.Name `json:"-" yaml:"-" xml:"ret"`
 		MRTP    float64  `json:"mrtp" yaml:"mrtp" xml:"mrtp"`
+		RTP     float64  `json:"rtp" yaml:"rtp" xml:"rtp"`
 	}
 
 	if err = c.ShouldBind(&arg); err != nil {
-		Ret400(c, AEC_game_rdget_nobind, err)
+		Ret400(c, AEC_game_rtpget_nobind, err)
 		return
 	}
 
 	var scene *Scene
 	if scene, ok = Scenes.Get(arg.GID); !ok {
-		Ret404(c, AEC_game_rdget_notopened, ErrNotOpened)
+		Ret404(c, AEC_game_rtpget_notopened, ErrNotOpened)
+		return
+	}
+
+	var gi *game.GameInfo
+	if gi = game.GetInfo(scene.Alias); gi == nil {
+		Ret500(c, AEC_game_rtpget_noinfo, ErrNoAliase)
 		return
 	}
 
 	var club *Club
 	if club, ok = Clubs.Get(scene.CID); !ok {
-		Ret500(c, AEC_game_rdget_noclub, ErrNoClub)
+		Ret500(c, AEC_game_rtpget_noclub, ErrNoClub)
 		return
 	}
 
 	var user *User
 	if user, ok = Users.Get(scene.UID); !ok {
-		Ret500(c, AEC_game_rdget_nouser, ErrNoUser)
+		Ret500(c, AEC_game_rtpget_nouser, ErrNoUser)
 		return
 	}
 
 	var admin, al = MustAdmin(c, scene.CID)
 	if admin != user && al&ALgame == 0 {
-		Ret403(c, AEC_game_rdget_noaccess, ErrNoAccess)
+		Ret403(c, AEC_game_rtpget_noaccess, ErrNoAccess)
 		return
 	}
 
-	club.mux.RLock()
 	ret.MRTP = GetRTP(user, club)
-	club.mux.RUnlock()
+	ret.RTP = gi.FindRTP(ret.MRTP)
 
 	RetOk(c, ret)
 }
diff --git a/api/keno.go b/api/keno.go
index 2147185..941957d 100644
--- a/api/keno.go
+++ b/api/keno.go
@@ -322,8 +322,8 @@ func ApiKenoSpin(c *gin.Context) {
 
 	club.mux.RLock()
 	var bank = club.Bank
-	var mrtp = GetRTP(user, club)
 	club.mux.RUnlock()
+	var mrtp = GetRTP(user, club)
 
 	// spin until gain less than bank value
 	var wins keno.Wins
diff --git a/api/logic.go b/api/logic.go
index 1fc2d90..0c968bb 100644
--- a/api/logic.go
+++ b/api/logic.go
@@ -209,6 +209,8 @@ func GetRTP(user *User, club *Club) float64 {
 			return props.MRTP
 		}
 	}
+	club.mux.RLock()
+	defer club.mux.RUnlock()
 	if club.MRTP != 0 {
 		return club.MRTP
 	}
diff --git a/api/props.go b/api/props.go
index f9673f9..2104c69 100644
--- a/api/props.go
+++ b/api/props.go
@@ -316,9 +316,7 @@ func ApiPropsRtpGet(c *gin.Context) {
 	}
 
 	if arg.All {
-		club.mux.RLock()
 		ret.MRTP = GetRTP(user, club)
-		club.mux.RUnlock()
 	} else {
 		ret.MRTP = user.GetRTP(arg.CID)
 	}
diff --git a/api/slot.go b/api/slot.go
index 2376f08..0cc3dfc 100644
--- a/api/slot.go
+++ b/api/slot.go
@@ -286,8 +286,8 @@ func ApiSlotSpin(c *gin.Context) {
 
 	club.mux.RLock()
 	var bank = club.Bank
-	var mrtp = GetRTP(user, club)
 	club.mux.RUnlock()
+	var mrtp = GetRTP(user, club)
 
 	// spin until gain less than bank value
 	var wins slot.Wins
@@ -436,8 +436,8 @@ func ApiSlotDoubleup(c *gin.Context) {
 
 	club.mux.RLock()
 	var bank = club.Bank
-	var mrtp = GetRTP(user, club)
 	club.mux.RUnlock()
+	var mrtp = GetRTP(user, club)
 
 	var multgain float64 // new multiplied gain
 	if bank >= risk*float64(arg.Mult) {
diff --git a/docs/list-all.md b/docs/list-all.md
index 0721235..ea16ec2 100644
--- a/docs/list-all.md
+++ b/docs/list-all.md
@@ -27,6 +27,7 @@
 'Big Five' AGT 5x3 videoslot
 'Bigfoot' AGT 5x3 videoslot
 'Bitcoin' AGT 5x3 videoslot
+'Book of Set' AGT 5x3 videoslot
 'Captain's Treasure' Playtech 5x3 videoslot
 'Casino' AGT 5x4 videoslot
 'Champagne' Megajack 5x3 videoslot
@@ -84,8 +85,9 @@
 'Marco Polo' Novomatic 5x3 videoslot
 'Pandora's Box' NetEnt 5x3 videoslot
 'Panther Moon' Playtech 5x3 videoslot
-'Pharaon's Gold II' Novomatic 5x3 videoslot
-'Pharaon's Gold III' Novomatic 5x3 videoslot
+'Pharaoh II' AGT 5x3 videoslot
+'Pharaoh's Gold II' Novomatic 5x3 videoslot
+'Pharaoh's Gold III' Novomatic 5x3 videoslot
 'Piggy Riches' NetEnt 5x3 videoslot
 'Pirates Gold' AGT 5x3 videoslot
 'Plenty on Twenty' Novomatic 5x3 videoslot
@@ -128,8 +130,8 @@
 'Wild Witches' NetEnt 5x3 videoslot
 'Wizard' AGT 5x4 videoslot
 
-total: 125 games, 64 algorithms, 9 providers
-AGT: 43 games
+total: 127 games, 64 algorithms, 9 providers
+AGT: 45 games
 Aristocrat: 4 games
 BetSoft: 3 games
 Megajack: 3 games
diff --git a/game/linkdata.go b/game/linkdata.go
index 209a796..6b700dd 100644
--- a/game/linkdata.go
+++ b/game/linkdata.go
@@ -2,6 +2,7 @@ package game
 
 import (
 	"context"
+	"math"
 	"sort"
 
 	"github.com/slotopol/server/util"
@@ -58,6 +59,17 @@ func MakeRtpList[T any](reelsmap map[float64]T) []float64 {
 	return list
 }
 
+func GetInfo(alias string) *GameInfo {
+	for _, gi := range GameList {
+		for _, ga := range gi.Aliases {
+			if aid := util.ToID(ga.Prov + "/" + ga.Name); alias == aid {
+				return gi
+			}
+		}
+	}
+	return nil
+}
+
 func (gi *GameInfo) SetupFactory(game func() any, scan Scanner) {
 	GameList = append(GameList, gi)
 	for _, ga := range gi.Aliases {
@@ -66,3 +78,12 @@ func (gi *GameInfo) SetupFactory(game func() any, scan Scanner) {
 		ScanFactory[aid] = scan
 	}
 }
+
+func (gi *GameInfo) FindRTP(mrtp float64) (rtp float64) {
+	for _, p := range gi.RTP {
+		if math.Abs(mrtp-p) < math.Abs(mrtp-rtp) {
+			rtp = p
+		}
+	}
+	return
+}
diff --git a/game/slot/agt/aislot/aislot_link.go b/game/slot/agt/aislot/aislot_link.go
index 0a5eaa6..9ea5f1a 100644
--- a/game/slot/agt/aislot/aislot_link.go
+++ b/game/slot/agt/aislot/aislot_link.go
@@ -8,8 +8,10 @@ import (
 
 var Info = game.GameInfo{
 	Aliases: []game.GameAlias{
-		{Prov: "AGT", Name: "AI"},    // see: https://demo.agtsoftware.com/games/agt/aislot
-		{Prov: "AGT", Name: "Tesla"}, // see: https://demo.agtsoftware.com/games/agt/tesla
+		{Prov: "AGT", Name: "AI"},          // see: https://demo.agtsoftware.com/games/agt/aislot
+		{Prov: "AGT", Name: "Tesla"},       // see: https://demo.agtsoftware.com/games/agt/tesla
+		{Prov: "AGT", Name: "Book of Set"}, // see: https://demo.agtsoftware.com/games/agt/bookofset
+		{Prov: "AGT", Name: "Pharaoh II"},  // see: https://demo.agtsoftware.com/games/agt/pharaoh2
 	},
 	GP: game.GPsel |
 		game.GPretrig |
diff --git a/game/slot/agt/aislot/aislot_rule.go b/game/slot/agt/aislot/aislot_rule.go
index 65881ab..eea7312 100644
--- a/game/slot/agt/aislot/aislot_rule.go
+++ b/game/slot/agt/aislot/aislot_rule.go
@@ -24,7 +24,7 @@ var LinePay = [10][5]float64{
 var ScatPay = [5]float64{0, 0, 2, 25, 250} // 1 scatter
 
 // Bet lines
-var BetLines = slot.BetLinesAgt5x3[:15]
+var BetLines = slot.BetLinesAgt5x3[:30]
 
 type Game struct {
 	slot.Slot5x3 `yaml:",inline"`
diff --git a/game/slot/novomatic/dolphinspearl/dolphinspearl_link.go b/game/slot/novomatic/dolphinspearl/dolphinspearl_link.go
index 9cfa59d..74169d3 100644
--- a/game/slot/novomatic/dolphinspearl/dolphinspearl_link.go
+++ b/game/slot/novomatic/dolphinspearl/dolphinspearl_link.go
@@ -19,8 +19,8 @@ var Info = game.GameInfo{
 		{Prov: "Novomatic", Name: "King Of Cards"},
 		{Prov: "Novomatic", Name: "Lucky Lady's Charm"},
 		{Prov: "Novomatic", Name: "Lucky Lady's Charm Deluxe"},
-		{Prov: "Novomatic", Name: "Pharaon's Gold II"},
-		{Prov: "Novomatic", Name: "Pharaon's Gold III"},
+		{Prov: "Novomatic", Name: "Pharaoh's Gold II"},
+		{Prov: "Novomatic", Name: "Pharaoh's Gold III"},
 		{Prov: "Novomatic", Name: "Polar Fox"},
 		{Prov: "Novomatic", Name: "Ramses II"},
 		{Prov: "Novomatic", Name: "Royal Treasures"},
diff --git a/game/slot/screen.go b/game/slot/screen.go
index 57625ab..f7ebb50 100644
--- a/game/slot/screen.go
+++ b/game/slot/screen.go
@@ -32,6 +32,9 @@ type Screenx struct {
 	data   [40]Sym
 }
 
+// Declare conformity with Screen interface.
+var _ Screen = (*Screenx)(nil)
+
 var poolsx = sync.Pool{
 	New: func() any {
 		return &Screen3x3{}
@@ -220,6 +223,9 @@ func (s *Screenx) UnmarshalJSON(b []byte) (err error) {
 // Screen for 3x3 slots.
 type Screen3x3 [3][3]Sym
 
+// Declare conformity with Screen interface.
+var _ Screen = (*Screen3x3)(nil)
+
 var pools3x3 = sync.Pool{
 	New: func() any {
 		return &Screen3x3{}
@@ -369,6 +375,9 @@ func (s *Screen3x3) FillSym() Sym {
 // Screen for 5x3 slots.
 type Screen5x3 [5][3]Sym
 
+// Declare conformity with Screen interface.
+var _ Screen = (*Screen5x3)(nil)
+
 var pools5x3 = sync.Pool{
 	New: func() any {
 		return &Screen5x3{}
@@ -515,6 +524,9 @@ func (s *Screen5x3) FillSym() Sym {
 // Screen for 5x4 slots.
 type Screen5x4 [5][4]Sym
 
+// Declare conformity with Screen interface.
+var _ Screen = (*Screen5x4)(nil)
+
 var pools5x4 = sync.Pool{
 	New: func() any {
 		return &Screen5x4{}