| Texas instrument TI-99/4A cart. |  4A DOS | 19?? | Schmidt |
| Texas instrument TI-99/4A cart. | 99 Home Sentry | 1986 | Corcomp |
| Texas instrument TI-99/4A cart. | Console Writer | 1984 | Navarone |
| Texas instrument TI-99/4A cart. | Data Base Management System | 1984 | Navarone |
| Texas instrument TI-99/4A cart. | Decimal Deli 2 | 1983 | Foresman & Co., Scott |
| Texas instrument TI-99/4A cart. | Demonstration Model PHM 3001 | 1979 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Desk Top Publisher | 1988 | DaTaBioTics |
| Texas instrument TI-99/4A cart. | Disk Fixer | 1984 | Navarone |
| Texas instrument TI-99/4A cart. | Disk Fixer v2.0 | 1984 | Navarone |
| Texas instrument TI-99/4A cart. | Disk Manager 1 | 1980 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Disk Manager 1 Model PHM 3019 | 1982 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Disk Manager 2 Model PHM 3089 | 1982 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Disk Manager 3 | 1983 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Editor/Assembler Model PHM 3055 | 1981 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Edu-Pack | 1990 | Asgard |
| Texas instrument TI-99/4A cart. | Extended Basic Plus | 19?? | Unknown |
| Texas instrument TI-99/4A cart. | Extended Basic v100 Model PHM 3026 | 1982 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Extended Basic Model PHM 3026 | 1981 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Fig FORTH | 1986 | Weiand |
| Texas instrument TI-99/4A cart. | Fractions 1 | 1983 | Foresman & Co., Scott |
| Texas instrument TI-99/4A cart. | Fractions 2 | 1983 | Foresman & Co., Scott |
| Texas instrument TI-99/4A cart. | GRAM-based Disassembler | 1992 | Nouspikel, Thierry |
| Texas instrument TI-99/4A cart. | Homework Helper+ | 1984 | Navarone |
| Texas instrument TI-99/4A cart. | Link v0.99 | 1990 | Asgard |
| Texas instrument TI-99/4A cart. | Mechatronic/PS Extended Basic | 19?? | Mechatronic |
| Texas instrument TI-99/4A cart. | Microsoft Multiplan Model PHM 3113 | 1981 | Texas Instruments |
| Texas instrument TI-99/4A cart. | Milliken Manager | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Addition Model PHM 3090 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Decimals Model PHM 3096 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Division Model PHM 3093 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Equations Model PHM 3100 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Fractional Numbers Model PHM 3095 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Integers Model PHM 3094 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Laws of Arithmetic Model PHM 3099 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Measurement Formulas Model PHM 3101 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Multiplication Model PHM 3092 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Number Readiness Model PHM 3098 | 1984 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Percents Model PHM 3097 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Milliken Math Sequences - Subtraction Model PHM 3091 | 1982 | Milliken Publishing |
| Texas instrument TI-99/4A cart. | Miniwriter II | 1985 | DaTaBioTics |
