diff --git a/game/master.go b/game/master.go
new file mode 100644
index 0000000..d8e9ead
--- /dev/null
+++ b/game/master.go
@@ -0,0 +1,16 @@
+package game
+
+import (
+	"errors"
+	"local/secret-hitler-via-matrix/game/state"
+)
+
+type Master struct{}
+
+func New() (*Master, error) {
+	return nil, errors.New("not impl")
+}
+
+func (m *Master) State() (state.State, error) {
+	return state.State{}, errors.New("not impl")
+}
diff --git a/game/state/alignment.go b/game/state/alignment.go
new file mode 100644
index 0000000..00e4d38
--- /dev/null
+++ b/game/state/alignment.go
@@ -0,0 +1,17 @@
+package state
+
+type Alignment int
+
+const (
+	LIBERAL = Alignment(iota)
+	FACIST
+	HITLER
+)
+
+func (a Alignment) CanSeeFacist() bool {
+	return a == FACIST
+}
+
+func (a Alignment) CanSeeHitler() bool {
+	return a == FACIST
+}
diff --git a/game/state/card.go b/game/state/card.go
new file mode 100644
index 0000000..18f164f
--- /dev/null
+++ b/game/state/card.go
@@ -0,0 +1,17 @@
+package state
+
+type CardState struct {
+	IsFacist bool
+
+	IsDrawn     bool
+	IsPlayed    bool
+	IsDiscarded bool
+}
+
+func (state CardState) Redact(alignment Alignment) CardState {
+	state2 := state
+
+	state2.IsFacist = false
+
+	return state2
+}
diff --git a/game/state/player.go b/game/state/player.go
new file mode 100644
index 0000000..5960cbe
--- /dev/null
+++ b/game/state/player.go
@@ -0,0 +1,30 @@
+package state
+
+type PlayerState struct {
+	ID   string
+	Name string
+
+	IsFacist bool
+	IsHitler bool
+
+	IsDead bool
+
+	IsChancellor          bool
+	IsCandidateChancellor bool
+	IsPresident           bool
+	IsCandidatePresident  bool
+
+	IsVoting     bool
+	IsShooting   bool
+	IsInspecting bool
+	IsPeeking    bool
+}
+
+func (state PlayerState) Redact(alignment Alignment) PlayerState {
+	state2 := state
+
+	state2.IsFacist = state2.IsFacist && alignment.CanSeeFacist()
+	state2.IsHitler = state2.IsHitler && alignment.CanSeeHitler()
+
+	return state2
+}
diff --git a/game/state/state.go b/game/state/state.go
new file mode 100644
index 0000000..ccbc920
--- /dev/null
+++ b/game/state/state.go
@@ -0,0 +1,36 @@
+package state
+
+type State struct {
+	Players []PlayerState
+	Cards   []CardState
+}
+
+func (state State) Copy() State {
+	return State{
+		Players: append([]PlayerState{}, state.Players...),
+		Cards:   append([]CardState{}, state.Cards...),
+	}
+}
+
+func (state State) RedactLiberal() State {
+	return state.Redact(LIBERAL)
+}
+
+func (state State) RedactFacist() State {
+	return state.Redact(FACIST)
+}
+
+func (state State) RedactHitler() State {
+	return state.Redact(HITLER)
+}
+
+func (state State) Redact(alignment Alignment) State {
+	state2 := state.Copy()
+	for i := range state2.Players {
+		state2.Players[i] = state2.Players[i].Redact(alignment)
+	}
+	for i := range state2.Cards {
+		state2.Cards[i] = state2.Cards[i].Redact(alignment)
+	}
+	return state2
+}
diff --git a/server/server.go b/server/server.go
new file mode 100644
index 0000000..61f75d3
--- /dev/null
+++ b/server/server.go
@@ -0,0 +1,9 @@
+package server
+
+import "errors"
+
+type Server struct{}
+
+func New() (*Server, error) {
+	return &Server{}, errors.New("not impl")
+}