mescon · mescon · Sep 17, 2026 · Sep 17, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,17 @@ the contract is "it works on RS50 and G Pro as listed here".
 
 ## Unreleased
 
+**Assetto Corsa Rally takes the SDK route.** The registry listed it as plain
+force feedback with nothing to do, and on a G PRO that gave nothing: with
+raw HID off the game did not see the wheel, and with it on by hand the stock
+Logitech library took the wheel and returned only its own damping
+([#105](../../issues/105)). On a G923 Xbox edition with Logitech's files in
+the prefix and raw HID on, its force feedback and TrueForce were confirmed
+working ([#83](../../issues/83)). The game now gets the same route as
+Assetto Corsa EVO: `logi-launch` turns raw HID on, stages the proxy that
+answers the SDK's rotation question and resets the wheel first, and the
+app's Setup page offers the shim install for it.
+
 **Inertia no longer renders the encoder's grain, and the per-class levels
 reach past 100.** `FF_INERTIA` was fed the per-tick velocity difference,
 which on a quantised encoder is an impulse train: a rim turning smoothly

diff --git a/docs/GAME_SETUP.md b/docs/GAME_SETUP.md
@@ -56,7 +56,7 @@ instead of wrapping it.
 | Assetto Corsa (original) | Proton | Native FFB | Turn on simulated TrueForce | Turn on simulated TrueForce |
 | Assetto Corsa Competizione | Proton | TrueForce shim | Install the shim<br>`logi-launch %command%` | Turn on simulated TrueForce<br>and leave `PROTON_ENABLE_HIDRAW` unset |
 | Assetto Corsa EVO (early access) | Proton | TrueForce shim | Install the shim<br>`logi-launch %command%` | Turn on simulated TrueForce<br>and leave `PROTON_ENABLE_HIDRAW` unset |
-| Assetto Corsa Rally (early access) * | Proton | Native FFB | Nothing to do | Nothing to do |
+| Assetto Corsa Rally (early access) * | Proton | TrueForce shim | Install the shim<br>`logi-launch %command%` | Plain force feedback<br>leave `PROTON_ENABLE_HIDRAW` unset |
 | Automobilista 2 | Proton | Native FFB | Turn on simulated TrueForce | Turn on simulated TrueForce |
 | BeamNG.drive * | Native Linux | Native FFB | Turn on simulated TrueForce | Turn on simulated TrueForce |
 | CarX Drift Racing Online | Proton | Native FFB | Nothing to do | Nothing to do |
@@ -144,5 +144,5 @@ app's Setup page afterwards.
 
 - **verified** (4 titles): confirmed end to end by this project
 - **documented** (16 titles): documented by the vendor or a reliable community source
-- **expected** (6 titles): expected to work, not confirmed
-- **unknown** (4 titles): genuinely unknown
+- **expected** (7 titles): expected to work, not confirmed
+- **unknown** (3 titles): genuinely unknown
diff --git a/tools/setup.sh b/tools/setup.sh
@@ -72,7 +72,7 @@ TF_PFX_DIR_REL="drive_c/Program Files/Logi/Trueforce"
 # their force feedback, so the copy is guarded rather than trusted.
 #
 # Sims that load Logitech's TrueForce SDK: ACC, AC EVO.
-SDK_SIM_APPIDS="805550 3058630"
+SDK_SIM_APPIDS="805550 3058630 3917090"
 # Sims driven through DirectInput, i.e. logi-ffb: rFactor 2, Le Mans Ultimate,
 # iRacing, RaceRoom. PROTON_ENABLE_HIDRAW must NOT be set for these.
 DINPUT_SIM_APPIDS="365960 2399420 266410 211500"

diff --git a/userspace/logi-wheel/crates/logi-wheel-core/src/games.rs b/userspace/logi-wheel/crates/logi-wheel-core/src/games.rs
@@ -494,7 +494,19 @@ impl GameCompat {
         if self.linux == Linux::Unsupported {
             return self.setup;
         }
-        if self.ffb == Ffb::TrueForceShim && !caps.sdk_trueforce {
+        if self.ffb == Ffb::TrueForceShim
+            && !caps.sdk_trueforce
+            && self.simulated_tf.live_id().is_none()
+        {
+            // An SDK title with no telemetry: the simulated route below
+            // has nothing to synthesise from, so it must not be offered.
+            "Leave PROTON_ENABLE_HIDRAW unset: on this wheel it costs you \
+             force feedback, and this game publishes no telemetry yet, so \
+             there is no simulated TrueForce to turn on either. Installing \
+             the shim WITH --proxy carries the game's own TrueForce to the \
+             wheel instead (tools/install-tf-shim.sh --proxy). Steam Input \
+             off."
+        } else if self.ffb == Ffb::TrueForceShim && !caps.sdk_trueforce {
             // Worded as "not available on this wheel" rather than "this
             // wheel has no SDK TrueForce", because it also covers the
             // unidentified wheel, about which we know only that we cannot
@@ -826,11 +838,20 @@ logi-tf-sim.",
     GameCompat {
         name: "Assetto Corsa Rally (early access)",
         linux: Linux::Proton,
-        ffb: Ffb::NativeEvdev,
-        native_trueforce: Support::No,
+        // The same SDK route as Assetto Corsa EVO. Listed as plain force
+        // feedback until 2026-09: with raw HID left off, the game did not
+        // see a G PRO at all, and with it on by hand, the stock library
+        // took the wheel and gave back only its own damping (#105). On a
+        // G923 Xbox edition with Logitech's files in the prefix and raw
+        // HID on, its force feedback and TrueForce were confirmed working
+        // (#83), which is what this route arranges.
+        ffb: Ffb::TrueForceShim,
+        native_trueforce: Support::Yes,
         simulated_tf: SimTf::No,
-        setup: "Plain force feedback; watch for telemetry as it matures.",
-        confidence: Confidence::Unknown,
+        setup: "Install the TrueForce shim once, from the app's Setup page; launch options `logi-launch %command%` (it turns raw HID on, stages the proxy that answers the SDK's rotation question, and resets the wheel first, the same recipe as Assetto Corsa EVO); turn Steam Input off. No telemetry yet, so nothing to feed the lights.",
+        // Confirmed on a G923 Xbox edition (#83); a direct-drive wheel has
+        // not yet been reported on this route.
+        confidence: Confidence::Expected,
     },
     GameCompat {
         name: "Euro Truck Simulator 2",

diff --git a/userspace/logi-wheel/crates/logi-wheel-core/tests/game_setup_doc.rs b/userspace/logi-wheel/crates/logi-wheel-core/tests/game_setup_doc.rs
@@ -46,9 +46,16 @@ fn recipe_cell(g: &GameCompat, caps: WheelCaps) -> String {
     // having seen the other column say to set a variable, and needs telling
     // that doing so on their wheel is not merely pointless.
     if g.ffb == Ffb::TrueForceShim && !caps.sdk_trueforce {
-        return "Turn on simulated TrueForce<br>and leave \
-                `PROTON_ENABLE_HIDRAW` unset"
-            .to_string();
+        // Simulated TrueForce is only on offer where the game publishes
+        // telemetry to synthesise it from; a title without any has plain
+        // force feedback on this wheel and nothing to add to it.
+        return if g.simulated_tf.live_id().is_some() {
+            "Turn on simulated TrueForce<br>and leave \
+             `PROTON_ENABLE_HIDRAW` unset"
+        } else {
+            "Plain force feedback<br>leave `PROTON_ENABLE_HIDRAW` unset"
+        }
+        .to_string();
     }
     let action = match g.setup_action(caps) {
         SetupAction::InstallShim => "Install the shim",