Your system information

• Steam client version (build number or date): Built Sep 3 2020 at 21:18:20
• Distribution (e.g. Ubuntu): ArchLinux
• Opted into Steam client beta?: [Yes/No] No
• Have you checked for system updates?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist

When I launch the Dropsy game, a black window opens then closes immediately.
Errors in Steam's output seem to be unspecific errors:

GameAction [AppID 274350, ActionID 2] : LaunchApp changed task to ProcessingInstallScript with ""
GameAction [AppID 274350, ActionID 2] : LaunchApp changed task to SynchronizingCloud with ""
GameAction [AppID 274350, ActionID 2] : LaunchApp changed task to SiteLicenseSeatCheckout with ""
GameAction [AppID 274350, ActionID 2] : LaunchApp changed task to CreatingProcess with ""
GameAction [AppID 274350, ActionID 2] : LaunchApp waiting for user response to CreatingProcess ""
GameAction [AppID 274350, ActionID 2] : LaunchApp continues with user response "CreatingProcess"
Game update: AppID 274350 "", ProcID 4262, IP 0.0.0.0:0
ERROR: ld.so: object '/home/safe/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/safe/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Found path: /home/safe/.local/share/Steam/steamapps/common/Dropsy/Dropsy.x86_64
Mono path[0] = '/home/safe/.local/share/Steam/steamapps/common/Dropsy/Dropsy_Data/Managed'
Mono path[1] = '/home/safe/.local/share/Steam/steamapps/common/Dropsy/Dropsy_Data/Mono'
Mono config path = '/home/safe/.local/share/Steam/steamapps/common/Dropsy/Dropsy_Data/Mono/etc'
displaymanager : xrandr version warning. 1.6
client has 4 screens
displaymanager screen (0)(DVI-D-0): 1920 x 1080
Using libudev for joystick management

Importing game controller configs
Starting app 274350
>>> Adding process 4262 for game ID 274350
GameAction [AppID 274350, ActionID 2] : LaunchApp changed task to WaitingGameWindow with ""
>>> Adding process 4263 for game ID 274350
GameAction [AppID 274350, ActionID 2] : LaunchApp changed task to Completed with ""
Installing breakpad exception handler for appid(gameoverlayui)/version(20200903211816)
Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)
Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)
>>> Adding process 4304 for game ID 274350
[1005/102105.243489:INFO:crash_reporting.cc(270)] Crash reporting enabled for process: renderer
Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)
>>> Adding process 4308 for game ID 274350
[1005/102105.526702:ERROR:frame_sink_video_capturer_impl.cc(206)] Invalid resolutions constraints: 0x0 must not be greater than 0x0; and also within media::limits.
Game removed: AppID 274350 "", ProcID 4263 
Uploaded AppInterfaceStats to Steam
Exiting app 274350
No cached sticky mapping in ActivateActionSet.[2020-10-05 10:27:14] Background update loop checking for update. . .
[2020-10-05 10:27:14] Checking for available updates...
[2020-10-05 10:27:14] Downloading manifest: client-download.steampowered.com/client/steam_client_ubuntu12
Installing breakpad exception handler for appid(steam)/version(1599174997)
[2020-10-05 10:27:14] Download skipped: /client/steam_client_ubuntu12 version 1599174997, installed version 1599174997, downloaded version 0
[2020-10-05 10:27:14] Nothing to do
Installing breakpad exception handler for appid(steam)/version(1599174997)
Installing breakpad exception handler for appid(steam)/version(1599174997)

There's a more meaningful crash in journalctl:

oct. 05 10:21:06 fixe systemd-coredump[4310]: Process 4263 (Dropsy.x86_64) of user 1001 dumped core.
                                              
                                              Stack trace of thread 4263:
                                              #0  0x00007f8070216615 raise (libc.so.6 + 0x3d615)
                                              #1  0x00007f80701ff862 abort (libc.so.6 + 0x26862)
                                              #2  0x00007f806e38d976 n/a (/home/safe/.local/share/Steam/steamapps/common/Dropsy/Dropsy_Data/Mono/x86_64/libmono.so + 0x91976)