What engine does GTA 4 use?

Related questions

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Tags

1. #microsoft
2. #renderware
3. #north
4. #theft
5. #studio
6. #playstation
7. #mostly
8. #prior
9. #develop
10. #early
11. #games
12. #installments
13. #grand
14. #primarily
15. #criterion
16. #engine
17. #rockstar
18. #windows
19. #franchise
20. #developing
21. #advanced