user2560: I'm using the GuessGame:
https://github.com/input-output-hk/plutus/blob/a36af17fd38db591865679916c819079ad51fda2/plutus-playground-server/usecases/Game.hs
under the simulator, with this code
main = Simulator.runSimulationWith handlers $ do

     cid <- Simulator.activateContract (Wallet 1) GuessGame

     waitNSlots 3
     callEndpointOnInstance cid "lock" LockParams{secretWord="world", amount= Ada.adaValueOf 200}

     waitNSlots 3
     callEndpointOnInstance cid "guess" GuessParams{guessWord="world"}
  
  where
  handlers :: SimulatorEffectHandlers (Builtin TestContracts)
  handlers =
    Simulator.mkSimulatorHandlers def def
    $ interpret (contractHandler (Builtin.handleBuiltin @TestContracts))

The traces included in the GuessGame code, indicates that the transaction has been done, but how I can display the final balances of the the simulated accounts?

user1231: You need to include these lines at the end:
Simulator.logString @(Builtin TestContracts) "Balances at the end of the simulation"
b <- Simulator.currentBalances
Simulator.logBalances @(Builtin TestContracts) b


2560: <p>I'm using the GuessGame:</p>
<p><a href="https://github.com/input-output-hk/plutus/blob/a36af17fd38db591865679916c819079ad51fda2/plutus-playground-server/usecases/Game.hs" rel="nofollow noreferrer">https://github.com/input-output-hk/plutus/blob/a36af17fd38db591865679916c819079ad51fda2/plutus-playground-server/usecases/Game.hs</a></p>
<p>under the simulator, with this code</p>
<pre><code>main = Simulator.runSimulationWith handlers $ do

     cid &lt;- Simulator.activateContract (Wallet 1) GuessGame

     waitNSlots 3
     callEndpointOnInstance cid &quot;lock&quot; LockParams{secretWord=&quot;world&quot;, amount= Ada.adaValueOf 200}

     waitNSlots 3
     callEndpointOnInstance cid &quot;guess&quot; GuessParams{guessWord=&quot;world&quot;}
  
  where
  handlers :: SimulatorEffectHandlers (Builtin TestContracts)
  handlers =
    Simulator.mkSimulatorHandlers def def
    $ interpret (contractHandler (Builtin.handleBuiltin @TestContracts))
</code></pre>
<p>The traces included in the GuessGame code, indicates that the transaction has been done, but how I can display the final balances of the the simulated accounts?</p>
 1231: <p>You need to include these lines at the end:</p>
<pre><code>Simulator.logString @(Builtin TestContracts) &quot;Balances at the end of the simulation&quot;
b &lt;- Simulator.currentBalances
Simulator.logBalances @(Builtin TestContracts) b
</code></pre>
