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OpenXRay

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xray-16
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRa...

C++ · 3562 stars

Beginner friendly Everything

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COP - xr_3da process enters stopped state upon launching Open

Bug Linux

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenXRay/xray-16#2143 · Opened Sep 19, 2026
Jolt Physics Open

Enhancement Physics

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenXRay/xray-16#2139 · 1 comment · Opened Sep 14, 2026
Clear Sky - running on MacOS Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2133 · 1 comment · Opened Aug 17, 2026
CS - missing dialog for stash coordinates for Flash drive with data on an electronic stabilization system for shotguns Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OpenXRay/xray-16#2116 · Opened Jul 12, 2026
CS - The character from mission rescue Wolfs brother cant reload weapon Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

OpenXRay/xray-16#2115 · Opened Jul 12, 2026
CS - Strelok fall under the bridge Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenXRay/xray-16#2112 · Opened Jul 3, 2026
CS - Streloks health manager script crashes the engine Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenXRay/xray-16#2111 · Opened Jul 3, 2026
CS - missing blinking marker for asigned seconday task on PDA Open

Bug Gameplay Player Experience UI

Difficulty 3/5 1-2 days Newbie friendliness 58/100

OpenXRay/xray-16#2106 · Opened Jun 19, 2026
CS - shaders from CGIM2 weather mod crashes the game Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2103 · Opened Jun 4, 2026
Fix drop fps after surge Clear Sky and Call of Pripyat Open

Performance Vanilla Bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

OpenXRay/xray-16#2098 · 1 comment · Opened May 29, 2026
Чистое небо вылетает. Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2097 · Opened May 24, 2026
COP - sudden engine crash Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenXRay/xray-16#2094 · Opened May 12, 2026
Actors animation when running without weapon is unnatural Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

OpenXRay/xray-16#2092 · Opened May 9, 2026
Inventory opening causes increased stuttering each time Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2089 · Opened Apr 28, 2026
Problems with task icons in PDA: icons for secondary tasks are missing, and the main task icon is not displayed after switching tasks. Open

Bug UI

Difficulty 3/5 1-2 days Newbie friendliness 68/100

OpenXRay/xray-16#2086 · Opened Apr 15, 2026
COP - RAM usage keeps increasing indefinetly Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

OpenXRay/xray-16#2080 · Opened Apr 1, 2026
COP - Stuck icon stash Open

Vanilla Bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

OpenXRay/xray-16#2077 · Opened Mar 23, 2026
COP - duplicated answers in conversation with Uncle Yar Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2075 · Opened Mar 17, 2026
CS - Sun Rays coming through walls in R4 render Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenXRay/xray-16#2071 · 1 comment · Opened Mar 12, 2026
COP - sudden engine crash Open

Bug Renderer

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2070 · 3 comments · Opened Mar 10, 2026
Launch error S.T.A.L.K.E.R. Clear sky Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2067 · 3 comments · Opened Mar 9, 2026
COP - incorrect muzzle flash in Open GL Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2066 · Opened Mar 6, 2026
COP - changing grass detail radius and returning to the game crashes engine Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2064 · 2 comments · Opened Mar 6, 2026
COP - mission Missing Stalkers has no bloodsucker body Open

Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2062 · 1 comment · Opened Mar 1, 2026
COP - reocurring movement bug with injured stalker Open

Game assets Vanilla Bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

OpenXRay/xray-16#2060 · Opened Feb 28, 2026
COP - Actor model dissappears when Noah dissappears in 3rd view Open

Game assets Gameplay Not a bug Player Experience

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenXRay/xray-16#2059 · 1 comment · Opened Feb 28, 2026
Не запускается оригинальный CoC 1.4.22 Open

Bug Call of Chernobyl Lua

OpenXRay/xray-16#2058 · 1 comment · 1 assignee · Opened Feb 28, 2026
COP - missing sound can break the engine and cause crash Open

Bug Game assets Modmaker Experience Player Experience

Difficulty 4/5 3-5 days Newbie friendliness 42/100

OpenXRay/xray-16#2056 · 3 comments · Opened Feb 25, 2026
X-Ray Extensions and XP-Dev functionality support Open

Enhancement Lua Modmaker Experience

Difficulty 5/5 Over a week Newbie friendliness 20/100

OpenXRay/xray-16#2028 · Opened Jan 1, 2026
Falling/clipping through ground Open

Bug Linux Physics

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#2025 · 4 comments · Opened Dec 29, 2025
COP - Stalkers spawn at a close distance Open

Enhancement Gameplay Help wanted Player Experience

Difficulty 4/5 3-5 days Newbie friendliness 28/100

OpenXRay/xray-16#2020 · 2 comments · Opened Dec 25, 2025
Increased glossiness in render Open

Bug Player Experience Renderer

Difficulty 4/5 3-5 days Newbie friendliness 30/100

OpenXRay/xray-16#2014 · 2 comments · Opened Dec 21, 2025
Cannot select a combobox item after scrollbox focus lost Open

Bug UI

OpenXRay/xray-16#2011 · 2 comments · 1 assignee · Opened Dec 18, 2025
Clear Sky - selected render in video settings reverts Open

Bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

OpenXRay/xray-16#2009 · Opened Dec 18, 2025
Clear Sky - ERROR: Incorrect enter_smart call for squad 46!!! dolg ~= freedom Open

Bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenXRay/xray-16#2006 · Opened Dec 15, 2025
"move all" option on right click menu when looting Open

Enhancement Player Experience UI

Difficulty 4/5 3-5 days Newbie friendliness 38/100

OpenXRay/xray-16#2000 · Opened Nov 25, 2025
Call of Chernobyl loading a save completes all current objectives Open

Bug Call of Chernobyl

Difficulty 4/5 3-5 days Newbie friendliness 55/100

OpenXRay/xray-16#1988 · 4 comments · Opened Nov 13, 2025
use-after-free in lua during level transition Open

Bug Game assets Lua

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenXRay/xray-16#1983 · Opened Nov 7, 2025
use-after-free while creating a save game in CS Open

Bug Game assets Lua

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenXRay/xray-16#1981 · 1 comment · Opened Nov 7, 2025
use-after-free in `CPHContactBodyEffector::Apply()` Open

Bug Code Quality Physics

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#1978 · Opened Nov 7, 2025
use-after-free in `xray::render::render_gl::R_dsgraph_structure::render_graph` Open

Bug Renderer

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#1975 · 1 comment · Opened Nov 6, 2025
Намертво виснет игра из-за бага в загрузчике звука \ The game freezes due to a bug in the sound loader. Open

Bug Modmaker Experience Player Experience Sound

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#1965 · 1 comment · Opened Oct 18, 2025
Ability to change the "Take All" key in looting menus Open

Enhancement Player Experience UI

Difficulty 4/5 3-5 days Newbie friendliness 38/100

OpenXRay/xray-16#1961 · Opened Sep 30, 2025
Toggle HUD key Open

Enhancement Gameplay good first issue Help wanted Player Experience UI

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#1960 · Opened Sep 30, 2025
Clear Sky - letter *Y* in the save game name acts as ENTER Open

Bug Player Experience UI

Difficulty 3/5 1-2 days Newbie friendliness 42/100

OpenXRay/xray-16#1955 · Opened Sep 27, 2025
Refactor shared_str Open

Code Quality Core Enhancement Performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenXRay/xray-16#1948 · 1 reaction · Opened Sep 15, 2025
Improve CMAKE_OSX_DEPLOYMENT_TARGET and CMAKE_OSX_SYSROOT handling Open

Code Quality Infrastructure macOS Portability

Difficulty 3/5 1-2 days Newbie friendliness 55/100

OpenXRay/xray-16#1942 · Opened Sep 13, 2025
hash_fixed_vertex_manager casts 64-bit pointer to 32-bit value to use it as a hash Open

AI Bug Code Quality Critical

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenXRay/xray-16#1934 · Opened Sep 7, 2025
Call of Pripyat - missing "you are irradiated" warning when trying to sleep irradiated Open

Bug Player Experience UI

Difficulty 3/5 1-2 days Newbie friendliness 42/100

OpenXRay/xray-16#1929 · 4 comments · Opened Aug 20, 2025
Export ImGui functionality to Lua scripts Open

Developer Experience Enhancement good first issue Help wanted Lua Modmaker Experience SDK

Difficulty 4/5 3-5 days Newbie friendliness 25/100

OpenXRay/xray-16#1924 · 1 reaction · Opened Aug 7, 2025

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